80931888 has 60 divisors (see below), whose sum is σ = 229629400. Its totient is φ = 26604288.

The previous prime is 80931881. The next prime is 80931943. The reversal of 80931888 is 88813908.

It is not an unprimeable number, because it can be changed into a prime (80931881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6663 + ... + 14361.

Almost surely, 2^80931888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80931888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114814700).

80931888 is an abundant number, since it is smaller than the sum of its proper divisors (148697512).

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

80931888 is a wasteful number, since it uses less digits than its factorization.

80931888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 80931888 is about 8996.2152041845. The cubic root of 80931888 is about 432.5535599189.

The spelling of 80931888 in words is "eighty million, nine hundred thirty-one thousand, eight hundred eighty-eight".