275864 has 8 divisors (see below), whose sum is σ = 517260. Its totient is φ = 137928.

The previous prime is 275837. The next prime is 275881. The reversal of 275864 is 468572.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×275864² = 152201892992, which contains 22 as substring.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 275864.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 275864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17234 + ... + 17249.

2²⁷⁵⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

275864 is a deficient number, since it is larger than the sum of its proper divisors (241396).

275864 is a wasteful number, since it uses less digits than its factorization.

275864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34489 (or 34485 counting only the distinct ones).

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

The square root of 275864 is about 525.2275697257. The cubic root of 275864 is about 65.0976048412.

The spelling of 275864 in words is "two hundred seventy-five thousand, eight hundred sixty-four".