80985872 has 20 divisors (see below), whose sum is σ = 171175056. Its totient is φ = 36811680.

The previous prime is 80985869. The next prime is 80985887. The reversal of 80985872 is 27858908.

It is a super-2 number, since 2×80985872² = 13117422927200768, 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, 229898 + ... + 230249.

Almost surely, 2^80985872 is an apocalyptic number.

It is an amenable number.

80985872 is an abundant number, since it is smaller than the sum of its proper divisors (90189184).

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

80985872 is a wasteful number, since it uses less digits than its factorization.

80985872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460166 (or 460160 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 80985872 is about 8999.2150768831. The cubic root of 80985872 is about 432.6497139481.

The spelling of 80985872 in words is "eighty million, nine hundred eighty-five thousand, eight hundred seventy-two".