23389889 has 4 divisors (see below), whose sum is σ = 23417856. Its totient is φ = 23361924.

The previous prime is 23389859. The next prime is 23389913. The reversal of 23389889 is 98898332.

It is a happy number.

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 23389889 - 2²⁴ = 6612673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23389859) 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, 12689 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (5854464).

Almost surely, 2^23389889 is an apocalyptic number.

It is an amenable number.

23389889 is a deficient number, since it is larger than the sum of its proper divisors (27967).

23389889 is an equidigital number, since it uses as much as digits as its factorization.

23389889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27966.

The product of its digits is 746496, while the sum is 50.

The square root of 23389889 is about 4836.3094400586. The cubic root of 23389889 is about 285.9846479770.

The spelling of 23389889 in words is "twenty-three million, three hundred eighty-nine thousand, eight hundred eighty-nine".