23169939 has 16 divisors (see below), whose sum is σ = 33465600. Its totient is φ = 14174496.

The previous prime is 23169917. The next prime is 23169941. The reversal of 23169939 is 93996132.

It is a happy number.

It is not a de Polignac number, because 23169939 - 2¹² = 23165843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23169939.

It is not an unprimeable number, because it can be changed into a prime (23169959) 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, 5322 + ... + 8640.

It is an arithmetic number, because the mean of its divisors is an integer number (2091600).

Almost surely, 2^23169939 is an apocalyptic number.

23169939 is a deficient number, since it is larger than the sum of its proper divisors (10295661).

23169939 is a wasteful number, since it uses less digits than its factorization.

23169939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514.

The product of its digits is 78732, while the sum is 42.

The square root of 23169939 is about 4813.5162823034. The cubic root of 23169939 is about 285.0853914639.

The spelling of 23169939 in words is "twenty-three million, one hundred sixty-nine thousand, nine hundred thirty-nine".