22907091 has 4 divisors (see below), whose sum is σ = 30542792. Its totient is φ = 15271392.

The previous prime is 22907083. The next prime is 22907119. The reversal of 22907091 is 19070922.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22907091 - 2³ = 22907083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22907051) 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 3 ways as a sum of consecutive naturals, for example, 3817846 + ... + 3817851.

It is an arithmetic number, because the mean of its divisors is an integer number (7635698).

Almost surely, 2^22907091 is an apocalyptic number.

22907091 is a deficient number, since it is larger than the sum of its proper divisors (7635701).

22907091 is an equidigital number, since it uses as much as digits as its factorization.

22907091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635700.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 22907091 is about 4786.1352885183. The cubic root of 22907091 is about 284.0032524589.

The spelling of 22907091 in words is "twenty-two million, nine hundred seven thousand, ninety-one".