22690939 has 2 divisors, whose sum is σ = 22690940. Its totient is φ = 22690938.

The previous prime is 22690931. The next prime is 22690979. The reversal of 22690939 is 93909622.

It is an a-pointer prime, because the next prime (22690979) can be obtained adding 22690939 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22690939 - 2³ = 22690931 is a prime.

It is not a weakly prime, because it can be changed into another prime (22690931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11345469 + 11345470.

It is an arithmetic number, because the mean of its divisors is an integer number (11345470).

Almost surely, 2^22690939 is an apocalyptic number.

22690939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22690939 is an equidigital number, since it uses as much as digits as its factorization.

22690939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 22690939 is about 4763.5007085126. The cubic root of 22690939 is about 283.1071401944.

The spelling of 22690939 in words is "twenty-two million, six hundred ninety thousand, nine hundred thirty-nine".