23989364 has 24 divisors (see below), whose sum is σ = 49002240. Its totient is φ = 10061856.

The previous prime is 23989349. The next prime is 23989367. The reversal of 23989364 is 46398932.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23989367) 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, 7799 + ... + 10430.

It is an arithmetic number, because the mean of its divisors is an integer number (2041760).

Almost surely, 2^23989364 is an apocalyptic number.

It is an amenable number.

23989364 is an abundant number, since it is smaller than the sum of its proper divisors (25012876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23989364 is a wasteful number, since it uses less digits than its factorization.

23989364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18287 (or 18285 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 23989364 is about 4897.8938330674. The cubic root of 23989364 is about 288.4072973031.

The spelling of 23989364 in words is "twenty-three million, nine hundred eighty-nine thousand, three hundred sixty-four".