79668828 has 36 divisors (see below), whose sum is σ = 202293000. Its totient is φ = 26436576.

The previous prime is 79668811. The next prime is 79668833. The reversal of 79668828 is 82886697.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3298 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (5619250).

Almost surely, 2^79668828 is an apocalyptic number.

It is an amenable number.

79668828 is an abundant number, since it is smaller than the sum of its proper divisors (122624172).

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

79668828 is a wasteful number, since it uses less digits than its factorization.

79668828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9986 (or 9981 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 79668828 is about 8925.7396332181. The cubic root of 79668828 is about 430.2915419676.

The spelling of 79668828 in words is "seventy-nine million, six hundred sixty-eight thousand, eight hundred twenty-eight".