809984315 has 16 divisors (see below), whose sum is σ = 1137931200. Its totient is φ = 541870080.

The previous prime is 809984303. The next prime is 809984317. The reversal of 809984315 is 513489908.

It is not a de Polignac number, because 809984315 - 2⁴ = 809984299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 809984315.

It is not an unprimeable number, because it can be changed into a prime (809984317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280790 + ... + 283659.

It is an arithmetic number, because the mean of its divisors is an integer number (71120700).

Almost surely, 2^809984315 is an apocalyptic number.

809984315 is a deficient number, since it is larger than the sum of its proper divisors (327946885).

809984315 is a wasteful number, since it uses less digits than its factorization.

809984315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564502.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 809984315 is about 28460.2233828197. The cubic root of 809984315 is about 932.1637348409.

The spelling of 809984315 in words is "eight hundred nine million, nine hundred eighty-four thousand, three hundred fifteen".