22570939 has 2 divisors, whose sum is σ = 22570940. Its totient is φ = 22570938.

The previous prime is 22570913. The next prime is 22570949. The reversal of 22570939 is 93907522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22570939 - 2⁷ = 22570811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22570898 and 22570907.

It is not a weakly prime, because it can be changed into another prime (22570909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11285469 + 11285470.

It is an arithmetic number, because the mean of its divisors is an integer number (11285470).

Almost surely, 2^22570939 is an apocalyptic number.

22570939 is a deficient number, since it is larger than the sum of its proper divisors (1).

22570939 is an equidigital number, since it uses as much as digits as its factorization.

22570939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 22570939 is about 4750.8882327413. Note that the first 3 decimals coincide. The cubic root of 22570939 is about 282.6071914209.

The spelling of 22570939 in words is "twenty-two million, five hundred seventy thousand, nine hundred thirty-nine".