22953921 has 8 divisors (see below), whose sum is σ = 30627744. Its totient is φ = 15291360.

The previous prime is 22953911. The next prime is 22953937. The reversal of 22953921 is 12935922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22953921 - 2⁹ = 22953409 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22953911) 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, 5226 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (3828468).

Almost surely, 2^22953921 is an apocalyptic number.

It is an amenable number.

22953921 is a deficient number, since it is larger than the sum of its proper divisors (7673823).

22953921 is a wasteful number, since it uses less digits than its factorization.

22953921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its digits is 9720, while the sum is 33.

The square root of 22953921 is about 4791.0250468976. The cubic root of 22953921 is about 284.1966542811.

It can be divided in two parts, 2295 and 3921, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 22953921 in words is "twenty-two million, nine hundred fifty-three thousand, nine hundred twenty-one".