80813712 has 40 divisors (see below), whose sum is σ = 238593856. Its totient is φ = 23089536.

The previous prime is 80813687. The next prime is 80813713. The reversal of 80813712 is 21731808.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80813712.

It is not an unprimeable number, because it can be changed into a prime (80813713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119923 + ... + 120594.

Almost surely, 2^80813712 is an apocalyptic number.

It is an amenable number.

80813712 is an abundant number, since it is smaller than the sum of its proper divisors (157780144).

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

80813712 is a wasteful number, since it uses less digits than its factorization.

80813712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240535 (or 240529 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 80813712 is about 8989.6447093308. The cubic root of 80813712 is about 432.3429204484.

The spelling of 80813712 in words is "eighty million, eight hundred thirteen thousand, seven hundred twelve".