79722992 has 20 divisors (see below), whose sum is σ = 155045880. Its totient is φ = 39711168.

The previous prime is 79722967. The next prime is 79722997. The reversal of 79722992 is 29922797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79722997) 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, 4958 + ... + 13565.

It is an arithmetic number, because the mean of its divisors is an integer number (7752294).

Almost surely, 2^79722992 is an apocalyptic number.

It is an amenable number.

79722992 is a deficient number, since it is larger than the sum of its proper divisors (75322888).

79722992 is a wasteful number, since it uses less digits than its factorization.

79722992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18800 (or 18794 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 79722992 is about 8928.7732640044. The cubic root of 79722992 is about 430.3890331778.

The spelling of 79722992 in words is "seventy-nine million, seven hundred twenty-two thousand, nine hundred ninety-two".