79543728 has 160 divisors (see below), whose sum is σ = 262483200. Its totient is φ = 22809600.

The previous prime is 79543703. The next prime is 79543733. The reversal of 79543728 is 82734597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89848 + ... + 90728.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^79543728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79543728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131241600).

79543728 is an abundant number, since it is smaller than the sum of its proper divisors (182939472).

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

79543728 is a wasteful number, since it uses less digits than its factorization.

79543728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 916 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 79543728 is about 8918.7290574386. The cubic root of 79543728 is about 430.0662021741.

The spelling of 79543728 in words is "seventy-nine million, five hundred forty-three thousand, seven hundred twenty-eight".