80789972 has 12 divisors (see below), whose sum is σ = 142250976. Its totient is φ = 40146840.

The previous prime is 80789941. The next prime is 80789987. The reversal of 80789972 is 27998708.

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 80789972.

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, 61304 + ... + 62607.

It is an arithmetic number, because the mean of its divisors is an integer number (11854248).

Almost surely, 2^80789972 is an apocalyptic number.

It is an amenable number.

80789972 is a deficient number, since it is larger than the sum of its proper divisors (61461004).

80789972 is a wasteful number, since it uses less digits than its factorization.

80789972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124078 (or 124076 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 80789972 is about 8988.3242042107. The cubic root of 80789972 is about 432.3005809911.

The spelling of 80789972 in words is "eighty million, seven hundred eighty-nine thousand, nine hundred seventy-two".