80733872 has 20 divisors (see below), whose sum is σ = 157943760. Its totient is φ = 39974208.

The previous prime is 80733857. The next prime is 80733911. The reversal of 80733872 is 27833708.

It is a super-2 number, since 2×80733872² = 13035916176224768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22847 + ... + 26142.

It is an arithmetic number, because the mean of its divisors is an integer number (7897188).

Almost surely, 2^80733872 is an apocalyptic number.

It is an amenable number.

80733872 is a deficient number, since it is larger than the sum of its proper divisors (77209888).

80733872 is a wasteful number, since it uses less digits than its factorization.

80733872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49100 (or 49094 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 80733872 is about 8985.2029470680. The cubic root of 80733872 is about 432.2004956395.

The spelling of 80733872 in words is "eighty million, seven hundred thirty-three thousand, eight hundred seventy-two".