864765375 has 16 divisors (see below), whose sum is σ = 1438970208. Its totient is φ = 461208000.

The previous prime is 864765371. The next prime is 864765427. The reversal of 864765375 is 573567468.

It is not a de Polignac number, because 864765375 - 2² = 864765371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864765371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152646 + ... + 1153395.

It is an arithmetic number, because the mean of its divisors is an integer number (89935638).

Almost surely, 2^864765375 is an apocalyptic number.

864765375 is a deficient number, since it is larger than the sum of its proper divisors (574204833).

864765375 is a wasteful number, since it uses less digits than its factorization.

864765375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306059 (or 2306049 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 51.

The square root of 864765375 is about 29406.8933245251. The cubic root of 864765375 is about 952.7217882410.

The spelling of 864765375 in words is "eight hundred sixty-four million, seven hundred sixty-five thousand, three hundred seventy-five".