80009864 has 16 divisors (see below), whose sum is σ = 163656720. Its totient is φ = 36368080.

The previous prime is 80009863. The next prime is 80009899. The reversal of 80009864 is 46890008.

It is not an unprimeable number, because it can be changed into a prime (80009863) 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 3 ways as a sum of consecutive naturals, for example, 454514 + ... + 454689.

It is an arithmetic number, because the mean of its divisors is an integer number (10228545).

Almost surely, 2^80009864 is an apocalyptic number.

It is an amenable number.

80009864 is an abundant number, since it is smaller than the sum of its proper divisors (83646856).

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

80009864 is a wasteful number, since it uses less digits than its factorization.

80009864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909220 (or 909216 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80009864 is about 8944.8233073661. The cubic root of 80009864 is about 430.9046467317.

The spelling of 80009864 in words is "eighty million, nine thousand, eight hundred sixty-four".