79789128 has 32 divisors (see below), whose sum is σ = 199953600. Its totient is φ = 26532288.

The previous prime is 79789117. The next prime is 79789141. The reversal of 79789128 is 82198797.

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 7 ways as a sum of consecutive naturals, for example, 6750 + ... + 14322.

It is an arithmetic number, because the mean of its divisors is an integer number (6248550).

Almost surely, 2^79789128 is an apocalyptic number.

It is an amenable number.

79789128 is an abundant number, since it is smaller than the sum of its proper divisors (120164472).

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

79789128 is a wasteful number, since it uses less digits than its factorization.

79789128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021 (or 8017 counting only the distinct ones).

The product of its digits is 508032, while the sum is 51.

The square root of 79789128 is about 8932.4760285153. The cubic root of 79789128 is about 430.5080132485.

The spelling of 79789128 in words is "seventy-nine million, seven hundred eighty-nine thousand, one hundred twenty-eight".