804996864 has 432 divisors, whose sum is σ = 2908039680. Its totient is φ = 209018880.

The previous prime is 804996859. The next prime is 804996887. The reversal of 804996864 is 468699408.

It is a self number, because there is not a number n which added to its sum of digits gives 804996864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11337949 + ... + 11338019.

Almost surely, 2^804996864 is an apocalyptic number.

804996864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804996864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454019840).

804996864 is an abundant number, since it is smaller than the sum of its proper divisors (2103042816).

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

804996864 is a wasteful number, since it uses less digits than its factorization.

804996864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 804996864 is about 28372.4666534300. The cubic root of 804996864 is about 930.2465388696.

The spelling of 804996864 in words is "eight hundred four million, nine hundred ninety-six thousand, eight hundred sixty-four".