80831836 has 12 divisors (see below), whose sum is σ = 142474360. Its totient is φ = 40124880.

The previous prime is 80831819. The next prime is 80831851. The reversal of 80831836 is 63813808.

It is a super-2 number, since 2×80831836² = 13067571422261792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80831795 and 80831804.

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 3 ways as a sum of consecutive naturals, for example, 72135 + ... + 73246.

Almost surely, 2^80831836 is an apocalyptic number.

It is an amenable number.

80831836 is a deficient number, since it is larger than the sum of its proper divisors (61642524).

80831836 is a wasteful number, since it uses less digits than its factorization.

80831836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145524 (or 145522 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80831836 is about 8990.6527015562. The cubic root of 80831836 is about 432.3752383855.

The spelling of 80831836 in words is "eighty million, eight hundred thirty-one thousand, eight hundred thirty-six".