80371856 has 20 divisors (see below), whose sum is σ = 156125052. Its totient is φ = 40081536.

The previous prime is 80371829. The next prime is 80371909. The reversal of 80371856 is 65817308.

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 61152400 = 4384^2 + 7820^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 26 + ... + 12678.

Almost surely, 2^80371856 is an apocalyptic number.

It is an amenable number.

80371856 is a deficient number, since it is larger than the sum of its proper divisors (75753196).

80371856 is a wasteful number, since it uses less digits than its factorization.

80371856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13058 (or 13052 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 80371856 is about 8965.0351923459. The cubic root of 80371856 is about 431.5535224865.

The spelling of 80371856 in words is "eighty million, three hundred seventy-one thousand, eight hundred fifty-six".