79925172 has 24 divisors (see below), whose sum is σ = 196308000. Its totient is φ = 25239456.

The previous prime is 79925159. The next prime is 79925179. The reversal of 79925172 is 27152997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79925179) 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, 175047 + ... + 175502.

It is an arithmetic number, because the mean of its divisors is an integer number (8179500).

Almost surely, 2^79925172 is an apocalyptic number.

It is an amenable number.

79925172 is an abundant number, since it is smaller than the sum of its proper divisors (116382828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79925172 is a wasteful number, since it uses less digits than its factorization.

79925172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350575 (or 350573 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 79925172 is about 8940.0879190308. The cubic root of 79925172 is about 430.7525527328.

The spelling of 79925172 in words is "seventy-nine million, nine hundred twenty-five thousand, one hundred seventy-two".