79856928 has 60 divisors (see below), whose sum is σ = 234864630. Its totient is φ = 26618112.

The previous prime is 79856927. The next prime is 79856957. The reversal of 79856928 is 82965897.

It is a happy number.

79856928 is a `hidden beast` number, since 79 + 8 + 569 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55532304 + 24324624 = 7452^2 + 4932^2 .

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

It is not an unprimeable number, because it can be changed into a prime (79856921) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12813 + ... + 17996.

Almost surely, 2^79856928 is an apocalyptic number.

It is an amenable number.

79856928 is an abundant number, since it is smaller than the sum of its proper divisors (155007702).

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

79856928 is a wasteful number, since it uses less digits than its factorization.

79856928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30831 (or 30814 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 79856928 is about 8936.2703629646. The cubic root of 79856928 is about 430.6299186610.

The spelling of 79856928 in words is "seventy-nine million, eight hundred fifty-six thousand, nine hundred twenty-eight".