80912272 has 20 divisors (see below), whose sum is σ = 179163136. Its totient is φ = 34676640.

The previous prime is 80912267. The next prime is 80912297. The reversal of 80912272 is 27221908.

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, 361104 + ... + 361327.

Almost surely, 2^80912272 is an apocalyptic number.

It is an amenable number.

80912272 is an abundant number, since it is smaller than the sum of its proper divisors (98250864).

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

80912272 is a wasteful number, since it uses less digits than its factorization.

80912272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722446 (or 722440 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80912272 is about 8995.1249018566. The cubic root of 80912272 is about 432.5186101340.

The spelling of 80912272 in words is "eighty million, nine hundred twelve thousand, two hundred seventy-two".