79990012 has 12 divisors (see below), whose sum is σ = 140063616. Its totient is φ = 39971840.

The previous prime is 79990007. The next prime is 79990037. The reversal of 79990012 is 21009997.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3708 + ... + 13180.

It is an arithmetic number, because the mean of its divisors is an integer number (11671968).

Almost surely, 2^79990012 is an apocalyptic number.

It is an amenable number.

79990012 is a deficient number, since it is larger than the sum of its proper divisors (60073604).

79990012 is a wasteful number, since it uses less digits than its factorization.

79990012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588 (or 11586 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 79990012 is about 8943.7135463967. The cubic root of 79990012 is about 430.8690051820.

The spelling of 79990012 in words is "seventy-nine million, nine hundred ninety thousand, twelve".