79115972 has 24 divisors (see below), whose sum is σ = 150998400. Its totient is φ = 36050976.

The previous prime is 79115969. The next prime is 79116007. The reversal of 79115972 is 27951197.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5522 + ... + 13737.

It is an arithmetic number, because the mean of its divisors is an integer number (6291600).

Almost surely, 2^79115972 is an apocalyptic number.

It is an amenable number.

79115972 is a deficient number, since it is larger than the sum of its proper divisors (71882428).

79115972 is a wasteful number, since it uses less digits than its factorization.

79115972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19355 (or 19353 counting only the distinct ones).

The product of its digits is 39690, while the sum is 41.

The square root of 79115972 is about 8894.7159594897. The cubic root of 79115972 is about 429.2939051683.

The spelling of 79115972 in words is "seventy-nine million, one hundred fifteen thousand, nine hundred seventy-two".