22091073 has 4 divisors (see below), whose sum is σ = 29454768. Its totient is φ = 14727380.

The previous prime is 22091051. The next prime is 22091077. The reversal of 22091073 is 37019022.

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 a cyclic number.

It is not a de Polignac number, because 22091073 - 2⁹ = 22090561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22091077) 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, 3681843 + ... + 3681848.

It is an arithmetic number, because the mean of its divisors is an integer number (7363692).

Almost surely, 2^22091073 is an apocalyptic number.

It is an amenable number.

22091073 is a deficient number, since it is larger than the sum of its proper divisors (7363695).

22091073 is an equidigital number, since it uses as much as digits as its factorization.

22091073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363694.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 22091073 is about 4700.1141475500. The cubic root of 22091073 is about 280.5900524599.

The spelling of 22091073 in words is "twenty-two million, ninety-one thousand, seventy-three".