79397928 has 64 divisors (see below), whose sum is σ = 222120000. Its totient is φ = 26277696.

The previous prime is 79397917. The next prime is 79397933. The reversal of 79397928 is 82979397.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30951 + ... + 33417.

It is an arithmetic number, because the mean of its divisors is an integer number (3470625).

Almost surely, 2^79397928 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 79397928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111060000).

79397928 is an abundant number, since it is smaller than the sum of its proper divisors (142722072).

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

79397928 is a wasteful number, since it uses less digits than its factorization.

79397928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631 (or 2621 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 79397928 is about 8910.5514980836. The cubic root of 79397928 is about 429.8032776005.

The spelling of 79397928 in words is "seventy-nine million, three hundred ninety-seven thousand, nine hundred twenty-eight".