80531976 has 32 divisors (see below), whose sum is σ = 230091840. Its totient is φ = 23009088.

The previous prime is 80531953. The next prime is 80531977. The reversal of 80531976 is 67913508.

It is not an unprimeable number, because it can be changed into a prime (80531977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239511 + ... + 239846.

It is an arithmetic number, because the mean of its divisors is an integer number (7190370).

Almost surely, 2^80531976 is an apocalyptic number.

It is an amenable number.

80531976 is an abundant number, since it is smaller than the sum of its proper divisors (149559864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80531976 is a wasteful number, since it uses less digits than its factorization.

80531976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479373 (or 479369 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 80531976 is about 8973.9609983552. The cubic root of 80531976 is about 431.8399183968.

The spelling of 80531976 in words is "eighty million, five hundred thirty-one thousand, nine hundred seventy-six".