23988965 has 32 divisors (see below), whose sum is σ = 38658816. Its totient is φ = 13800960.

The previous prime is 23988961. The next prime is 23988967. The reversal of 23988965 is 56988932.

It is not a de Polignac number, because 23988965 - 2² = 23988961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23988961) 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 31 ways as a sum of consecutive naturals, for example, 2609 + ... + 7401.

It is an arithmetic number, because the mean of its divisors is an integer number (1208088).

Almost surely, 2^23988965 is an apocalyptic number.

It is an amenable number.

23988965 is a deficient number, since it is larger than the sum of its proper divisors (14669851).

23988965 is a wasteful number, since it uses less digits than its factorization.

23988965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829.

The product of its digits is 933120, while the sum is 50.

The square root of 23988965 is about 4897.8531011046. The cubic root of 23988965 is about 288.4056983285.

The spelling of 23988965 in words is "twenty-three million, nine hundred eighty-eight thousand, nine hundred sixty-five".