80856884 has 24 divisors (see below), whose sum is σ = 143337600. Its totient is φ = 39907296.

The previous prime is 80856883. The next prime is 80856887. The reversal of 80856884 is 48865808.

80856884 is nontrivially palindromic in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80856883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 124649 + ... + 125295.

It is an arithmetic number, because the mean of its divisors is an integer number (5972400).

Almost surely, 2^80856884 is an apocalyptic number.

It is an amenable number.

80856884 is a deficient number, since it is larger than the sum of its proper divisors (62480716).

80856884 is a wasteful number, since it uses less digits than its factorization.

80856884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 47.

The square root of 80856884 is about 8992.0455959698. The cubic root of 80856884 is about 432.4198949508.

The spelling of 80856884 in words is "eighty million, eight hundred fifty-six thousand, eight hundred eighty-four".