809995080 has 64 divisors (see below), whose sum is σ = 2557886400. Its totient is φ = 204629760.

The previous prime is 809995033. The next prime is 809995097. The reversal of 809995080 is 80599908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175351 + ... + 179910.

It is an arithmetic number, because the mean of its divisors is an integer number (39966975).

Almost surely, 2^809995080 is an apocalyptic number.

It is an amenable number.

809995080 is an abundant number, since it is smaller than the sum of its proper divisors (1747891320).

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

809995080 is a wasteful number, since it uses less digits than its factorization.

809995080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355294 (or 355290 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The square root of 809995080 is about 28460.4125057948. The cubic root of 809995080 is about 932.1678644263.

The spelling of 809995080 in words is "eight hundred nine million, nine hundred ninety-five thousand, eighty".