79387928 has 16 divisors (see below), whose sum is σ = 156687000. Its totient is φ = 37604736.

The previous prime is 79387883. The next prime is 79387937. The reversal of 79387928 is 82978397.

It is a super-2 number, since 2×79387928² = 12604886224266368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79387928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260993 + ... + 261296.

Almost surely, 2^79387928 is an apocalyptic number.

It is an amenable number.

79387928 is a deficient number, since it is larger than the sum of its proper divisors (77299072).

79387928 is a wasteful number, since it uses less digits than its factorization.

79387928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522314 (or 522310 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 79387928 is about 8909.9903479185. The cubic root of 79387928 is about 429.7852325736.

The spelling of 79387928 in words is "seventy-nine million, three hundred eighty-seven thousand, nine hundred twenty-eight".