22690907 has 4 divisors (see below), whose sum is σ = 22702656. Its totient is φ = 22679160.

The previous prime is 22690897. The next prime is 22690909. The reversal of 22690907 is 70909622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22690907 - 2⁴ = 22690891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22690909) 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, 2219 + ... + 7092.

It is an arithmetic number, because the mean of its divisors is an integer number (5675664).

Almost surely, 2^22690907 is an apocalyptic number.

22690907 is a deficient number, since it is larger than the sum of its proper divisors (11749).

22690907 is an equidigital number, since it uses as much as digits as its factorization.

22690907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11748.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 22690907 is about 4763.4973496371. The cubic root of 22690907 is about 283.1070071099.

The spelling of 22690907 in words is "twenty-two million, six hundred ninety thousand, nine hundred seven".