864275 has 12 divisors (see below), whose sum is σ = 1083264. Its totient is φ = 684000.

The previous prime is 864251. The next prime is 864277. The reversal of 864275 is 572468.

It is not a de Polignac number, because 864275 - 2⁶ = 864211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864277) 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, 4430 + ... + 4620.

It is an arithmetic number, because the mean of its divisors is an integer number (90272).

2⁸⁶⁴²⁷⁵ is an apocalyptic number.

864275 is a deficient number, since it is larger than the sum of its proper divisors (218989).

864275 is a wasteful number, since it uses less digits than its factorization.

864275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 377 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 864275 is about 929.6639177681. The cubic root of 864275 is about 95.2541670297.

The spelling of 864275 in words is "eight hundred sixty-four thousand, two hundred seventy-five".