23962989 has 4 divisors (see below), whose sum is σ = 31950656. Its totient is φ = 15975324.

The previous prime is 23962973. The next prime is 23962999. The reversal of 23962989 is 98926932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23962989 - 2⁴ = 23962973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23962999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3993829 + ... + 3993834.

It is an arithmetic number, because the mean of its divisors is an integer number (7987664).

Almost surely, 2^23962989 is an apocalyptic number.

It is an amenable number.

23962989 is a deficient number, since it is larger than the sum of its proper divisors (7987667).

23962989 is an equidigital number, since it uses as much as digits as its factorization.

23962989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987666.

The product of its digits is 419904, while the sum is 48.

The square root of 23962989 is about 4895.2006087596. The cubic root of 23962989 is about 288.3015625019.

The spelling of 23962989 in words is "twenty-three million, nine hundred sixty-two thousand, nine hundred eighty-nine".