808512804 has 108 divisors (see below), whose sum is σ = 2257403148. Its totient is φ = 243809280.

The previous prime is 808512799. The next prime is 808512823. The reversal of 808512804 is 408215808.

It can be written as a sum of positive squares in 2 ways, for example, as 179506404 + 629006400 = 13398^2 + 25080^2 .

It is a super-3 number, since 3×808512804³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1363132 + ... + 1363724.

It is an arithmetic number, because the mean of its divisors is an integer number (20901881).

Almost surely, 2^808512804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808512804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128701574).

808512804 is an abundant number, since it is smaller than the sum of its proper divisors (1448890344).

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

808512804 is a wasteful number, since it uses less digits than its factorization.

808512804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 808512804 is about 28434.3595672560. The cubic root of 808512804 is about 931.5989005761.

The spelling of 808512804 in words is "eight hundred eight million, five hundred twelve thousand, eight hundred four".