79099128 has 96 divisors (see below), whose sum is σ = 229132800. Its totient is φ = 24577344.

The previous prime is 79099123. The next prime is 79099129. The reversal of 79099128 is 82199097.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79099123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91225 + ... + 92087.

It is an arithmetic number, because the mean of its divisors is an integer number (2386800).

Almost surely, 2^79099128 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 79099128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114566400).

79099128 is an abundant number, since it is smaller than the sum of its proper divisors (150033672).

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

79099128 is a wasteful number, since it uses less digits than its factorization.

79099128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 79099128 is about 8893.7690547934. The cubic root of 79099128 is about 429.2634370694.

The spelling of 79099128 in words is "seventy-nine million, ninety-nine thousand, one hundred twenty-eight".