813701564 has 12 divisors (see below), whose sum is σ = 1533514584. Its totient is φ = 375554544.

The previous prime is 813701507. The next prime is 813701569. The reversal of 813701564 is 465107318.

It is a super-2 number, since 2×813701564² = 1324220470512092192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813701569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7824002 + ... + 7824105.

It is an arithmetic number, because the mean of its divisors is an integer number (127792882).

Almost surely, 2^813701564 is an apocalyptic number.

It is an amenable number.

813701564 is a deficient number, since it is larger than the sum of its proper divisors (719813020).

813701564 is a wasteful number, since it uses less digits than its factorization.

813701564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15648124 (or 15648122 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 813701564 is about 28525.4546677174. The cubic root of 813701564 is about 933.5875473629.

The spelling of 813701564 in words is "eight hundred thirteen million, seven hundred one thousand, five hundred sixty-four".