23888889 has 12 divisors (see below), whose sum is σ = 34944000. Its totient is φ = 15723864.

The previous prime is 23888867. The next prime is 23888899. The reversal of 23888889 is 98888832.

It is not a de Polignac number, because 23888889 - 2⁵ = 23888857 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23888819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16089 + ... + 17510.

It is an arithmetic number, because the mean of its divisors is an integer number (2912000).

Almost surely, 2^23888889 is an apocalyptic number.

It is an amenable number.

23888889 is a deficient number, since it is larger than the sum of its proper divisors (11055111).

23888889 is a wasteful number, since it uses less digits than its factorization.

23888889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33684 (or 33681 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 23888889 is about 4887.6261109050. The cubic root of 23888889 is about 288.0040870369.

The spelling of 23888889 in words is "twenty-three million, eight hundred eighty-eight thousand, eight hundred eighty-nine".