79862972 has 12 divisors (see below), whose sum is σ = 159726000. Its totient is φ = 34226976.

The previous prime is 79862963. The next prime is 79863019. The reversal of 79862972 is 27926897.

It is a happy number.

79862972 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 79862972.

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, 1426097 + ... + 1426152.

It is an arithmetic number, because the mean of its divisors is an integer number (13310500).

Almost surely, 2^79862972 is an apocalyptic number.

It is an amenable number.

79862972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79862972 is a wasteful number, since it uses less digits than its factorization.

79862972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852260 (or 2852258 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 79862972 is about 8936.6085289667. The cubic root of 79862972 is about 430.6407825131.

The spelling of 79862972 in words is "seventy-nine million, eight hundred sixty-two thousand, nine hundred seventy-two".