809204808 has 32 divisors (see below), whose sum is σ = 2023731360. Its totient is φ = 269639040.

The previous prime is 809204807. The next prime is 809204827. The reversal of 809204808 is 808402908.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (809204807) 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, 104428 + ... + 111908.

It is an arithmetic number, because the mean of its divisors is an integer number (63241605).

Almost surely, 2^809204808 is an apocalyptic number.

It is an amenable number.

809204808 is an abundant number, since it is smaller than the sum of its proper divisors (1214526552).

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

809204808 is a wasteful number, since it uses less digits than its factorization.

809204808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11997 (or 11993 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 809204808 is about 28446.5254117265. The cubic root of 809204808 is about 931.8646091404.

The spelling of 809204808 in words is "eight hundred nine million, two hundred four thousand, eight hundred eight".