79708531 has 8 divisors (see below), whose sum is σ = 91183104. Its totient is φ = 68255880.

The previous prime is 79708523. The next prime is 79708537. The reversal of 79708531 is 13580797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79708531 - 2³ = 79708523 is a prime.

It is a super-2 number, since 2×79708531² = 12706899828355922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79708537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3246 + ... + 13036.

It is an arithmetic number, because the mean of its divisors is an integer number (11397888).

Almost surely, 2^79708531 is an apocalyptic number.

79708531 is a deficient number, since it is larger than the sum of its proper divisors (11474573).

79708531 is a wasteful number, since it uses less digits than its factorization.

79708531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10961.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 79708531 is about 8927.9634295846. The cubic root of 79708531 is about 430.3630087650.

The spelling of 79708531 in words is "seventy-nine million, seven hundred eight thousand, five hundred thirty-one".