80889012 has 36 divisors (see below), whose sum is σ = 204742720. Its totient is φ = 26926992.

The previous prime is 80889007. The next prime is 80889019. The reversal of 80889012 is 21098808.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×80889012² = 13086064524672288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80889019) 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 11 ways as a sum of consecutive naturals, for example, 50439 + ... + 52017.

Almost surely, 2^80889012 is an apocalyptic number.

It is an amenable number.

80889012 is an abundant number, since it is smaller than the sum of its proper divisors (123853708).

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

80889012 is a wasteful number, since it uses less digits than its factorization.

80889012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 80889012 is about 8993.8318863541. The cubic root of 80889012 is about 432.4771605211.

The spelling of 80889012 in words is "eighty million, eight hundred eighty-nine thousand, twelve".