80817976 has 16 divisors (see below), whose sum is σ = 151633440. Its totient is φ = 40382400.

The previous prime is 80817959. The next prime is 80818009. The reversal of 80817976 is 67971808.

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, 16660 + ... + 20956.

It is an arithmetic number, because the mean of its divisors is an integer number (9477090).

Almost surely, 2^80817976 is an apocalyptic number.

It is an amenable number.

80817976 is a deficient number, since it is larger than the sum of its proper divisors (70815464).

80817976 is a wasteful number, since it uses less digits than its factorization.

80817976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654 (or 6650 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 80817976 is about 8989.8818679669. The cubic root of 80817976 is about 432.3505242644.

The spelling of 80817976 in words is "eighty million, eight hundred seventeen thousand, nine hundred seventy-six".