23775 has 12 divisors (see below), whose sum is σ = 39432. Its totient is φ = 12640.

The previous prime is 23773. The next prime is 23789. The reversal of 23775 is 57732.

It is not a de Polignac number, because 23775 - 2¹ = 23773 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

23775 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23773) 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, 84 + ... + 233.

It is an arithmetic number, because the mean of its divisors is an integer number (3286).

2²³⁷⁷⁵ is an apocalyptic number.

23775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23775 is a deficient number, since it is larger than the sum of its proper divisors (15657).

23775 is a wasteful number, since it uses less digits than its factorization.

23775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 325 counting only the distinct ones).

The product of its digits is 1470, while the sum is 24.

The square root of 23775 is about 154.1914394511. The cubic root of 23775 is about 28.7545676423.

The spelling of 23775 in words is "twenty-three thousand, seven hundred seventy-five".