80918872 has 24 divisors (see below), whose sum is σ = 160134300. Its totient is φ = 38328624.

The previous prime is 80918867. The next prime is 80918881. The reversal of 80918872 is 27881908.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 11122 + ... + 16897.

Almost surely, 2^80918872 is an apocalyptic number.

It is an amenable number.

80918872 is a deficient number, since it is larger than the sum of its proper divisors (79215428).

80918872 is a wasteful number, since it uses less digits than its factorization.

80918872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28063 (or 28040 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 80918872 is about 8995.4917597650. The cubic root of 80918872 is about 432.5303699702.

The spelling of 80918872 in words is "eighty million, nine hundred eighteen thousand, eight hundred seventy-two".