22090873 has 4 divisors (see below), whose sum is σ = 25246720. Its totient is φ = 18935028.

The previous prime is 22090867. The next prime is 22090883. The reversal of 22090873 is 37809022.

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 not a de Polignac number, because 22090873 - 2¹³ = 22082681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22090843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577913 + ... + 1577926.

It is an arithmetic number, because the mean of its divisors is an integer number (6311680).

Almost surely, 2^22090873 is an apocalyptic number.

It is an amenable number.

22090873 is a deficient number, since it is larger than the sum of its proper divisors (3155847).

22090873 is an equidigital number, since it uses as much as digits as its factorization.

22090873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155846.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22090873 is about 4700.0928714229. The cubic root of 22090873 is about 280.5892056898.

Adding to 22090873 its reverse (37809022), we get a palindrome (59899895).

The spelling of 22090873 in words is "twenty-two million, ninety thousand, eight hundred seventy-three".