79928 has 16 divisors (see below), whose sum is σ = 152880. Its totient is φ = 39168.

The previous prime is 79907. The next prime is 79939. The reversal of 79928 is 82997.

It is a congruent number.

It is an unprimeable number.

79928 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 725 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (9555).

2⁷⁹⁹²⁸ is an apocalyptic number.

It is an amenable number.

79928 is a deficient number, since it is larger than the sum of its proper divisors (72952).

79928 is a wasteful number, since it uses less digits than its factorization.

79928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 202 counting only the distinct ones).

The product of its digits is 9072, while the sum is 35.

The square root of 79928 is about 282.7154046033. The cubic root of 79928 is about 43.0757633126.

It can be divided in two parts, 7992 and 8, that multiplied together give a palindrome (63936).

The spelling of 79928 in words is "seventy-nine thousand, nine hundred twenty-eight".