71708070 has 48 divisors (see below), whose sum is σ = 200201328. Its totient is φ = 16390080.

The previous prime is 71708059. The next prime is 71708093. The reversal of 71708070 is 7080717.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22921 + ... + 25860.

It is an arithmetic number, because the mean of its divisors is an integer number (4170861).

Almost surely, 2^71708070 is an apocalyptic number.

71708070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71708070 is an abundant number, since it is smaller than the sum of its proper divisors (128493258).

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

71708070 is a wasteful number, since it uses less digits than its factorization.

71708070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48805 (or 48798 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 30.

The square root of 71708070 is about 8468.0617617020. The cubic root of 71708070 is about 415.4537447730.

Adding to 71708070 its reverse (7080717), we get a palindrome (78788787).

The spelling of 71708070 in words is "seventy-one million, seven hundred eight thousand, seventy".