80940912 has 80 divisors (see below), whose sum is σ = 237068160. Its totient is φ = 23590656.

The previous prime is 80940901. The next prime is 80940913. The reversal of 80940912 is 21904908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80940913) 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 15 ways as a sum of consecutive naturals, for example, 8443 + ... + 15269.

It is an arithmetic number, because the mean of its divisors is an integer number (2963352).

Almost surely, 2^80940912 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 80940912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118534080).

80940912 is an abundant number, since it is smaller than the sum of its proper divisors (156127248).

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

80940912 is a wasteful number, since it uses less digits than its factorization.

80940912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870 (or 6864 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 80940912 is about 8996.7167344537. The cubic root of 80940912 is about 432.5696360637.

The spelling of 80940912 in words is "eighty million, nine hundred forty thousand, nine hundred twelve".