80878064 has 20 divisors (see below), whose sum is σ = 157024920. Its totient is φ = 40355520.

The previous prime is 80878043. The next prime is 80878081. The reversal of 80878064 is 46087808.

It is a happy number.

It is a super-2 number, since 2×80878064² = 13082522472776192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179 + ... + 13109.

It is an arithmetic number, because the mean of its divisors is an integer number (7851246).

Almost surely, 2^80878064 is an apocalyptic number.

It is an amenable number.

80878064 is a deficient number, since it is larger than the sum of its proper divisors (76146856).

80878064 is a wasteful number, since it uses less digits than its factorization.

80878064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448 (or 10442 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 80878064 is about 8993.2232264078. The cubic root of 80878064 is about 432.4576482970.

The spelling of 80878064 in words is "eighty million, eight hundred seventy-eight thousand, sixty-four".