80572977 has 12 divisors (see below), whose sum is σ = 122508880. Its totient is φ = 50888088.

The previous prime is 80572957. The next prime is 80572981. The reversal of 80572977 is 77927508.

80572977 is a `hidden beast` number, since 8 + 0 + 572 + 9 + 77 = 666.

It is not a de Polignac number, because 80572977 - 2⁸ = 80572721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80572957) 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 11 ways as a sum of consecutive naturals, for example, 235423 + ... + 235764.

Almost surely, 2^80572977 is an apocalyptic number.

It is an amenable number.

80572977 is a deficient number, since it is larger than the sum of its proper divisors (41935903).

80572977 is a wasteful number, since it uses less digits than its factorization.

80572977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471212 (or 471209 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 80572977 is about 8976.2451503956. The cubic root of 80572977 is about 431.9131930776.

The spelling of 80572977 in words is "eighty million, five hundred seventy-two thousand, nine hundred seventy-seven".