808821204 has 24 divisors (see below), whose sum is σ = 1918189728. Its totient is φ = 265187040.

The previous prime is 808821173. The next prime is 808821229. The reversal of 808821204 is 402128808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551742 + ... + 553205.

It is an arithmetic number, because the mean of its divisors is an integer number (79924572).

Almost surely, 2^808821204 is an apocalyptic number.

It is an amenable number.

808821204 is an abundant number, since it is smaller than the sum of its proper divisors (1109368524).

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

808821204 is a wasteful number, since it uses less digits than its factorization.

808821204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105015 (or 1105013 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 808821204 is about 28439.7820666755. The cubic root of 808821204 is about 931.7173355500.

It can be divided in two parts, 8088 and 21204, that added together give a palindrome (29292).

The spelling of 808821204 in words is "eight hundred eight million, eight hundred twenty-one thousand, two hundred four".