707070 has 96 divisors (see below), whose sum is σ = 2183328. Its totient is φ = 145152.

The previous prime is 707053. The next prime is 707071. The reversal of 707070 is 70707.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an alternating number because its digits alternate between odd and even.

707070 is an undulating number in base 10.

707070 is a modest number, since divided by 7070 gives 70 as remainder.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 707070.

It is not an unprimeable number, because it can be changed into a prime (707071) by changing a digit.

707070 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19092 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (22743).

2⁷⁰⁷⁰⁷⁰ is an apocalyptic number.

707070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 707070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091664).

707070 is an abundant number, since it is smaller than the sum of its proper divisors (1476258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

707070 is a wasteful number, since it uses less digits than its factorization.

707070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 343, while the sum is 21.

The square root of 707070 is about 840.8745447449. The cubic root of 707070 is about 89.0883270742.

707070 divided by its sum of digits (21) gives a triangular number (33670 = T₂₅₉).

Adding to 707070 its reverse (70707), we get a palindrome (777777).

It can be divided in two parts, 7070 and 70, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 707070 in words is "seven hundred seven thousand, seventy", and thus it is an iban number.