22993621 has 8 divisors (see below), whose sum is σ = 26319744. Its totient is φ = 19677840.

The previous prime is 22993609. The next prime is 22993627. The reversal of 22993621 is 12639922.

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

It is not a de Polignac number, because 22993621 - 2⁵ = 22993589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22993627) 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, 2991 + ... + 7411.

It is an arithmetic number, because the mean of its divisors is an integer number (3289968).

Almost surely, 2^22993621 is an apocalyptic number.

It is an amenable number.

22993621 is a deficient number, since it is larger than the sum of its proper divisors (3326123).

22993621 is an equidigital number, since it uses as much as digits as its factorization.

22993621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171.

The product of its digits is 11664, while the sum is 34.

The square root of 22993621 is about 4795.1664204697. The cubic root of 22993621 is about 284.3604042100.

The spelling of 22993621 in words is "twenty-two million, nine hundred ninety-three thousand, six hundred twenty-one".