79713931 has 8 divisors (see below), whose sum is σ = 87139584. Its totient is φ = 72318120.

The previous prime is 79713919. The next prime is 79713967. The reversal of 79713931 is 13931797.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79713931 - 2⁵ = 79713899 is a prime.

It is a super-2 number, since 2×79713931² = 12708621590945522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79713131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671 + ... + 12736.

It is an arithmetic number, because the mean of its divisors is an integer number (10892448).

Almost surely, 2^79713931 is an apocalyptic number.

79713931 is a deficient number, since it is larger than the sum of its proper divisors (7425653).

79713931 is a wasteful number, since it uses less digits than its factorization.

79713931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921.

The product of its digits is 35721, while the sum is 40.

The square root of 79713931 is about 8928.2658450564. The cubic root of 79713931 is about 430.3727271215.

The spelling of 79713931 in words is "seventy-nine million, seven hundred thirteen thousand, nine hundred thirty-one".