23681889 has 40 divisors (see below), whose sum is σ = 44117568. Its totient is φ = 12299040.

The previous prime is 23681873. The next prime is 23681891. The reversal of 23681889 is 98818632.

It is not a de Polignac number, because 23681889 - 2⁴ = 23681873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23681849) 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 39 ways as a sum of consecutive naturals, for example, 4339 + ... + 8135.

Almost surely, 2^23681889 is an apocalyptic number.

It is an amenable number.

23681889 is a deficient number, since it is larger than the sum of its proper divisors (20435679).

23681889 is a wasteful number, since it uses less digits than its factorization.

23681889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3818 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 23681889 is about 4866.4041139223. The cubic root of 23681889 is about 287.1698097095.

The spelling of 23681889 in words is "twenty-three million, six hundred eighty-one thousand, eight hundred eighty-nine".