79437972 has 24 divisors (see below), whose sum is σ = 187590816. Its totient is φ = 26159968.

The previous prime is 79437949. The next prime is 79437973. The reversal of 79437972 is 27973497.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79437973) 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, 38883 + ... + 40874.

It is an arithmetic number, because the mean of its divisors is an integer number (7816284).

Almost surely, 2^79437972 is an apocalyptic number.

It is an amenable number.

79437972 is an abundant number, since it is smaller than the sum of its proper divisors (108152844).

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

79437972 is a wasteful number, since it uses less digits than its factorization.

79437972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79847 (or 79845 counting only the distinct ones).

The product of its digits is 666792, while the sum is 48.

The square root of 79437972 is about 8912.7982138047. The cubic root of 79437972 is about 429.8755219283.

The spelling of 79437972 in words is "seventy-nine million, four hundred thirty-seven thousand, nine hundred seventy-two".