22921893 has 8 divisors (see below), whose sum is σ = 33958400. Its totient is φ = 15281244.

The previous prime is 22921891. The next prime is 22921897. The reversal of 22921893 is 39812922.

It is not a de Polignac number, because 22921893 - 2¹ = 22921891 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 (22921891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424453 + ... + 424506.

It is an arithmetic number, because the mean of its divisors is an integer number (4244800).

Almost surely, 2^22921893 is an apocalyptic number.

It is an amenable number.

22921893 is a deficient number, since it is larger than the sum of its proper divisors (11036507).

22921893 is an equidigital number, since it uses as much as digits as its factorization.

22921893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848968 (or 848962 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 22921893 is about 4787.6813803761. The cubic root of 22921893 is about 284.0644112649.

It can be divided in two parts, 229 and 21893, that added together give a palindrome (22122).

The spelling of 22921893 in words is "twenty-two million, nine hundred twenty-one thousand, eight hundred ninety-three".