80994864 has 20 divisors (see below), whose sum is σ = 209236856. Its totient is φ = 26998272.

The previous prime is 80994841. The next prime is 80994871. The reversal of 80994864 is 46849908.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1687393 = 80994864 / (8 + 0 + 9 + 9 + 4 + 8 + 6 + 4).

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, 843649 + ... + 843744.

Almost surely, 2^80994864 is an apocalyptic number.

It is an amenable number.

80994864 is an abundant number, since it is smaller than the sum of its proper divisors (128241992).

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

80994864 is a wasteful number, since it uses less digits than its factorization.

80994864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687404 (or 1687398 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 80994864 is about 8999.7146621435. The cubic root of 80994864 is about 432.6657259683.

The spelling of 80994864 in words is "eighty million, nine hundred ninety-four thousand, eight hundred sixty-four".