864817713 has 12 divisors (see below), whose sum is σ = 1250807220. Its totient is φ = 575794656.

The previous prime is 864817703. The next prime is 864817721. The reversal of 864817713 is 317718468.

It can be written as a sum of positive squares in 2 ways, for example, as 98247744 + 766569969 = 9912^2 + 27687^2 .

It is not a de Polignac number, because 864817713 - 2⁶ = 864817649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864817703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55198 + ... + 69111.

It is an arithmetic number, because the mean of its divisors is an integer number (104233935).

Almost surely, 2^864817713 is an apocalyptic number.

It is an amenable number.

864817713 is a deficient number, since it is larger than the sum of its proper divisors (385989507).

864817713 is a wasteful number, since it uses less digits than its factorization.

864817713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125088 (or 125085 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 864817713 is about 29407.7832044512. The cubic root of 864817713 is about 952.7410083087.

The spelling of 864817713 in words is "eight hundred sixty-four million, eight hundred seventeen thousand, seven hundred thirteen".