23441921 has 4 divisors (see below), whose sum is σ = 24198144. Its totient is φ = 22685700.

The previous prime is 23441911. The next prime is 23441927. The reversal of 23441921 is 12914432.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23441921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23441927) 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, 378065 + ... + 378126.

It is an arithmetic number, because the mean of its divisors is an integer number (6049536).

Almost surely, 2^23441921 is an apocalyptic number.

It is an amenable number.

23441921 is a deficient number, since it is larger than the sum of its proper divisors (756223).

23441921 is an equidigital number, since it uses as much as digits as its factorization.

23441921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756222.

The product of its digits is 1728, while the sum is 26.

The square root of 23441921 is about 4841.6857601459. The cubic root of 23441921 is about 286.1965533974.

The spelling of 23441921 in words is "twenty-three million, four hundred forty-one thousand, nine hundred twenty-one".