707280 has 80 divisors (see below), whose sum is σ = 2511744. Its totient is φ = 161280.

The previous prime is 707279. The next prime is 707293. The reversal of 707280 is 82707.

It is a Cunningham number, because it is equal to 29⁴-1.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 707280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 1890.

2⁷⁰⁷²⁸⁰ is an apocalyptic number.

707280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 707280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255872).

707280 is an abundant number, since it is smaller than the sum of its proper divisors (1804464).

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

707280 is a wasteful number, since it uses less digits than its factorization.

707280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 707280 is about 840.9994054695. Note that the first 3 decimals coincide. The cubic root of 707280 is about 89.0971459544.

Adding to 707280 its reverse (82707), we get a palindrome (789987).

The spelling of 707280 in words is "seven hundred seven thousand, two hundred eighty".