80043864 has 32 divisors (see below), whose sum is σ = 208811520. Its totient is φ = 25521056.

The previous prime is 80043853. The next prime is 80043869. The reversal of 80043864 is 46834008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80043869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71952 + ... + 73055.

It is an arithmetic number, because the mean of its divisors is an integer number (6525360).

Almost surely, 2^80043864 is an apocalyptic number.

It is an amenable number.

80043864 is an abundant number, since it is smaller than the sum of its proper divisors (128767656).

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

80043864 is a wasteful number, since it uses less digits than its factorization.

80043864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145039 (or 145035 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 80043864 is about 8946.7236461176. The cubic root of 80043864 is about 430.9656753869.

The spelling of 80043864 in words is "eighty million, forty-three thousand, eight hundred sixty-four".