864715065 has 16 divisors (see below), whose sum is σ = 1404195648. Its totient is φ = 454297536.

The previous prime is 864715039. The next prime is 864715067. The reversal of 864715065 is 560517468.

It is not a de Polignac number, because 864715065 - 2⁶ = 864715001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864715067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429202 + ... + 431211.

It is an arithmetic number, because the mean of its divisors is an integer number (87762228).

Almost surely, 2^864715065 is an apocalyptic number.

It is an amenable number.

864715065 is a deficient number, since it is larger than the sum of its proper divisors (539480583).

864715065 is a wasteful number, since it uses less digits than its factorization.

864715065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860488.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 864715065 is about 29406.0379004041. The cubic root of 864715065 is about 952.7033121842.

The spelling of 864715065 in words is "eight hundred sixty-four million, seven hundred fifteen thousand, sixty-five".