79915912 has 16 divisors (see below), whose sum is σ = 158656860. Its totient is φ = 37607424.

The previous prime is 79915897. The next prime is 79915931. The reversal of 79915912 is 21951997.

It can be written as a sum of positive squares in 2 ways, for example, as 79316836 + 599076 = 8906^2 + 774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293673 + ... + 293944.

Almost surely, 2^79915912 is an apocalyptic number.

It is an amenable number.

79915912 is a deficient number, since it is larger than the sum of its proper divisors (78740948).

79915912 is a wasteful number, since it uses less digits than its factorization.

79915912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587640 (or 587636 counting only the distinct ones).

The product of its digits is 51030, while the sum is 43.

The square root of 79915912 is about 8939.5700120308. The cubic root of 79915912 is about 430.7359166610.

The spelling of 79915912 in words is "seventy-nine million, nine hundred fifteen thousand, nine hundred twelve".