275823 has 12 divisors (see below), whose sum is σ = 419640. Its totient is φ = 174096.

The previous prime is 275813. The next prime is 275827. The reversal of 275823 is 328572.

It is not a de Polignac number, because 275823 - 2¹⁷ = 144751 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 2¹² + 7 + 8² + 5⁷ + 2¹⁴ + 3¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (34970).

2²⁷⁵⁸²³ is an apocalyptic number.

275823 is a deficient number, since it is larger than the sum of its proper divisors (143817).

275823 is a wasteful number, since it uses less digits than its factorization.

275823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1635 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 275823 is about 525.1885375748. The cubic root of 275823 is about 65.0943796602.

The spelling of 275823 in words is "two hundred seventy-five thousand, eight hundred twenty-three".