23719965 has 16 divisors (see below), whose sum is σ = 38040000. Its totient is φ = 12621312.

The previous prime is 23719939. The next prime is 23719967. The reversal of 23719965 is 56991732.

It is not a de Polignac number, because 23719965 - 2⁶ = 23719901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23719967) 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 15 ways as a sum of consecutive naturals, for example, 5901 + ... + 9069.

It is an arithmetic number, because the mean of its divisors is an integer number (2377500).

Almost surely, 2^23719965 is an apocalyptic number.

It is an amenable number.

23719965 is a deficient number, since it is larger than the sum of its proper divisors (14320035).

23719965 is a wasteful number, since it uses less digits than its factorization.

23719965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its digits is 102060, while the sum is 42.

The square root of 23719965 is about 4870.3146715587. The cubic root of 23719965 is about 287.3236322194.

It can be divided in two parts, 237 and 19965, that added together give a palindrome (20202).

The spelling of 23719965 in words is "twenty-three million, seven hundred nineteen thousand, nine hundred sixty-five".