23489 has 4 divisors (see below), whose sum is σ = 23856. Its totient is φ = 23124.

The previous prime is 23473. The next prime is 23497. The reversal of 23489 is 98432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23489 - 2⁴ = 23473 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 224.

It is an arithmetic number, because the mean of its divisors is an integer number (5964).

2²³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

23489 is a deficient number, since it is larger than the sum of its proper divisors (367).

23489 is an equidigital number, since it uses as much as digits as its factorization.

23489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 1728, while the sum is 26.

The square root of 23489 is about 153.2612149241. The cubic root of 23489 is about 28.6388017195.

It can be divided in two parts, 234 and 89, that added together give a palindrome (323).

The spelling of 23489 in words is "twenty-three thousand, four hundred eighty-nine".