23825989 has 12 divisors (see below), whose sum is σ = 26336128. Its totient is φ = 21538440.

The previous prime is 23825969. The next prime is 23826031. The reversal of 23825989 is 98952832.

It is not a de Polignac number, because 23825989 - 2¹¹ = 23823941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23825969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26542 + ... + 27424.

Almost surely, 2^23825989 is an apocalyptic number.

It is an amenable number.

23825989 is a deficient number, since it is larger than the sum of its proper divisors (2510139).

23825989 is a wasteful number, since it uses less digits than its factorization.

23825989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1117 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 23825989 is about 4881.1872531178. The cubic root of 23825989 is about 287.7510910402.

The spelling of 23825989 in words is "twenty-three million, eight hundred twenty-five thousand, nine hundred eighty-nine".