80972992 has 28 divisors (see below), whose sum is σ = 165868096. Its totient is φ = 39179520.

The previous prime is 80972953. The next prime is 80972993. The reversal of 80972992 is 29927908.

It is not an unprimeable number, because it can be changed into a prime (80972993) by changing a digit.

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, 18423 + ... + 22390.

Almost surely, 2^80972992 is an apocalyptic number.

It is an amenable number.

80972992 is an abundant number, since it is smaller than the sum of its proper divisors (84895104).

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

80972992 is a wasteful number, since it uses less digits than its factorization.

80972992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40856 (or 40846 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 80972992 is about 8998.4994304606. The cubic root of 80972992 is about 432.6267765163.

The spelling of 80972992 in words is "eighty million, nine hundred seventy-two thousand, nine hundred ninety-two".