23969939 has 8 divisors (see below), whose sum is σ = 27911520. Its totient is φ = 20157696.

The previous prime is 23969909. The next prime is 23969941. The reversal of 23969939 is 93996932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23969939 - 2¹⁶ = 23904403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23969909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31934 + ... + 32675.

It is an arithmetic number, because the mean of its divisors is an integer number (3488940).

Almost surely, 2^23969939 is an apocalyptic number.

23969939 is a deficient number, since it is larger than the sum of its proper divisors (3941581).

23969939 is an equidigital number, since it uses as much as digits as its factorization.

23969939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64669.

The product of its digits is 708588, while the sum is 50.

The square root of 23969939 is about 4895.9104362723. The cubic root of 23969939 is about 288.3294318991.

The spelling of 23969939 in words is "twenty-three million, nine hundred sixty-nine thousand, nine hundred thirty-nine".