800816764 has 24 divisors (see below), whose sum is σ = 1530649008. Its totient is φ = 363575040.

The previous prime is 800816747. The next prime is 800816791. The reversal of 800816764 is 467618008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28212 + ... + 48964.

It is an arithmetic number, because the mean of its divisors is an integer number (63777042).

Almost surely, 2^800816764 is an apocalyptic number.

It is an amenable number.

800816764 is a deficient number, since it is larger than the sum of its proper divisors (729832244).

800816764 is a wasteful number, since it uses less digits than its factorization.

800816764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21645 (or 21643 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 800816764 is about 28298.7060481570. The cubic root of 800816764 is about 928.6335828241.

The spelling of 800816764 in words is "eight hundred million, eight hundred sixteen thousand, seven hundred sixty-four".