79924 has 24 divisors (see below), whose sum is σ = 158760. Its totient is φ = 34944.

The previous prime is 79907. The next prime is 79939. The reversal of 79924 is 42997.

It can be written as a sum of positive squares in 4 ways, for example, as 8100 + 71824 = 90^2 + 268^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (6615).

2⁷⁹⁹²⁴ is an apocalyptic number.

It is an amenable number.

79924 is a deficient number, since it is larger than the sum of its proper divisors (78836).

79924 is a wasteful number, since it uses less digits than its factorization.

79924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 97 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 79924 is about 282.7083302628. The cubic root of 79924 is about 43.0750447245.

The spelling of 79924 in words is "seventy-nine thousand, nine hundred twenty-four".