79988628 has 12 divisors (see below), whose sum is σ = 186640160. Its totient is φ = 26662872.

The previous prime is 79988611. The next prime is 79988653. The reversal of 79988628 is 82688997.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 3332848 + ... + 3332871.

Almost surely, 2^79988628 is an apocalyptic number.

It is an amenable number.

79988628 is an abundant number, since it is smaller than the sum of its proper divisors (106651532).

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

79988628 is a wasteful number, since it uses less digits than its factorization.

79988628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665726 (or 6665724 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The square root of 79988628 is about 8943.6361732799. The cubic root of 79988628 is about 430.8665201795.

The spelling of 79988628 in words is "seventy-nine million, nine hundred eighty-eight thousand, six hundred twenty-eight".