79981232 has 20 divisors (see below), whose sum is σ = 155548080. Its totient is φ = 39839808.

The previous prime is 79981219. The next prime is 79981273. The reversal of 79981232 is 23218997.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79981232.

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 3 ways as a sum of consecutive naturals, for example, 4988 + ... + 13595.

It is an arithmetic number, because the mean of its divisors is an integer number (7777404).

Almost surely, 2^79981232 is an apocalyptic number.

It is an amenable number.

79981232 is a deficient number, since it is larger than the sum of its proper divisors (75566848).

79981232 is a wasteful number, since it uses less digits than its factorization.

79981232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18860 (or 18854 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 79981232 is about 8943.2226853635. Note that the first 3 decimals coincide. The cubic root of 79981232 is about 430.8532400125.

The spelling of 79981232 in words is "seventy-nine million, nine hundred eighty-one thousand, two hundred thirty-two".