23589 has 6 divisors (see below), whose sum is σ = 34086. Its totient is φ = 15720.

The previous prime is 23581. The next prime is 23593. The reversal of 23589 is 98532.

It can be written as a sum of positive squares in only one way, i.e., 22500 + 1089 = 150^2 + 33^2 .

It is not a de Polignac number, because 23589 - 2³ = 23581 is a prime.

It is a plaindrome in base 10 and base 12.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1302 + ... + 1319.

It is an arithmetic number, because the mean of its divisors is an integer number (5681).

2²³⁵⁸⁹ is an apocalyptic number.

It is an amenable number.

23589 is a deficient number, since it is larger than the sum of its proper divisors (10497).

23589 is a wasteful number, since it uses less digits than its factorization.

23589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627 (or 2624 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 23589 is about 153.5871088340. The cubic root of 23589 is about 28.6793856185.

It can be divided in two parts, 235 and 89, that added together give a square (324 = 18²).

The spelling of 23589 in words is "twenty-three thousand, five hundred eighty-nine".