80986928 has 40 divisors (see below), whose sum is σ = 171740496. Its totient is φ = 36691200.

The previous prime is 80986903. The next prime is 80986967. The reversal of 80986928 is 82968908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73550 + ... + 74642.

Almost surely, 2^80986928 is an apocalyptic number.

80986928 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80986928 is an abundant number, since it is smaller than the sum of its proper divisors (90753568).

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

80986928 is a wasteful number, since it uses less digits than its factorization.

80986928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1527 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 80986928 is about 8999.2737484755. The cubic root of 80986928 is about 432.6515944247.

The spelling of 80986928 in words is "eighty million, nine hundred eighty-six thousand, nine hundred twenty-eight".