864668075 has 12 divisors (see below), whose sum is σ = 1072993080. Its totient is φ = 691215360.

The previous prime is 864668053. The next prime is 864668081. The reversal of 864668075 is 570866468.

It is a happy number.

It is not a de Polignac number, because 864668075 - 2⁶ = 864668011 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22952 + ... + 47498.

It is an arithmetic number, because the mean of its divisors is an integer number (89416090).

Almost surely, 2^864668075 is an apocalyptic number.

864668075 is a deficient number, since it is larger than the sum of its proper divisors (208325005).

864668075 is a wasteful number, since it uses less digits than its factorization.

864668075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25966 (or 25961 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 864668075 is about 29405.2389039776. The cubic root of 864668075 is about 952.6860547309.

The spelling of 864668075 in words is "eight hundred sixty-four million, six hundred sixty-eight thousand, seventy-five".