80881856 has 28 divisors (see below), whose sum is σ = 175092360. Its totient is φ = 36764160.

The previous prime is 80881849. The next prime is 80881901. The reversal of 80881856 is 65818808.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 56741 + ... + 58148.

Almost surely, 2^80881856 is an apocalyptic number.

It is an amenable number.

80881856 is an abundant number, since it is smaller than the sum of its proper divisors (94210504).

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

80881856 is a wasteful number, since it uses less digits than its factorization.

80881856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114912 (or 114902 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 44.

The square root of 80881856 is about 8993.4340493496. The cubic root of 80881856 is about 432.4644068407.

The spelling of 80881856 in words is "eighty million, eight hundred eighty-one thousand, eight hundred fifty-six".