79716913 has 8 divisors (see below), whose sum is σ = 84351200. Its totient is φ = 75126528.

The previous prime is 79716899. The next prime is 79716947. The reversal of 79716913 is 31961797.

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 79716913 - 2⁵ = 79716881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79716913.

It is not an unprimeable number, because it can be changed into a prime (79716313) 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, 7203 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (10543900).

Almost surely, 2^79716913 is an apocalyptic number.

It is an amenable number.

79716913 is a deficient number, since it is larger than the sum of its proper divisors (4634287).

79716913 is a wasteful number, since it uses less digits than its factorization.

79716913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21951.

The product of its digits is 71442, while the sum is 43.

The square root of 79716913 is about 8928.4328412102. The cubic root of 79716913 is about 430.3780936259.

It can be divided in two parts, 7971 and 6913, that added together give a square (14884 = 122²).

The spelling of 79716913 in words is "seventy-nine million, seven hundred sixteen thousand, nine hundred thirteen".