79752172 has 12 divisors (see below), whose sum is σ = 140166936. Its totient is φ = 39704480.

The previous prime is 79752163. The next prime is 79752173. The reversal of 79752172 is 27125797.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79752173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41854 + ... + 43717.

It is an arithmetic number, because the mean of its divisors is an integer number (11680578).

Almost surely, 2^79752172 is an apocalyptic number.

It is an amenable number.

79752172 is a deficient number, since it is larger than the sum of its proper divisors (60414764).

79752172 is a wasteful number, since it uses less digits than its factorization.

79752172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85808 (or 85806 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 79752172 is about 8930.4071575713. The cubic root of 79752172 is about 430.4415367268.

The spelling of 79752172 in words is "seventy-nine million, seven hundred fifty-two thousand, one hundred seventy-two".