23887149 has 16 divisors (see below), whose sum is σ = 37418304. Its totient is φ = 13363200.

The previous prime is 23887141. The next prime is 23887177. The reversal of 23887149 is 94178832.

It is not a de Polignac number, because 23887149 - 2³ = 23887141 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23887149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23887141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27412 + ... + 28269.

It is an arithmetic number, because the mean of its divisors is an integer number (2338644).

Almost surely, 2^23887149 is an apocalyptic number.

It is an amenable number.

23887149 is a deficient number, since it is larger than the sum of its proper divisors (13531155).

23887149 is a wasteful number, since it uses less digits than its factorization.

23887149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55708.

The product of its digits is 96768, while the sum is 42.

The square root of 23887149 is about 4887.4481071414. The cubic root of 23887149 is about 287.9970943958.

The spelling of 23887149 in words is "twenty-three million, eight hundred eighty-seven thousand, one hundred forty-nine".