22959021 has 4 divisors (see below), whose sum is σ = 30612032. Its totient is φ = 15306012.

The previous prime is 22959019. The next prime is 22959023. The reversal of 22959021 is 12095922.

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 an interprime number because it is at equal distance from previous prime (22959019) and next prime (22959023).

It is not a de Polignac number, because 22959021 - 2¹ = 22959019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22959021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22959023) 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, 3826501 + ... + 3826506.

It is an arithmetic number, because the mean of its divisors is an integer number (7653008).

Almost surely, 2^22959021 is an apocalyptic number.

It is an amenable number.

22959021 is a deficient number, since it is larger than the sum of its proper divisors (7653011).

22959021 is an equidigital number, since it uses as much as digits as its factorization.

22959021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7653010.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 22959021 is about 4791.5572625191. The cubic root of 22959021 is about 284.2177007304.

The spelling of 22959021 in words is "twenty-two million, nine hundred fifty-nine thousand, twenty-one".