22972507 has 2 divisors, whose sum is σ = 22972508. Its totient is φ = 22972506.

The previous prime is 22972487. The next prime is 22972511. The reversal of 22972507 is 70527922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22972507 - 2¹⁹ = 22448219 is a prime.

It is not a weakly prime, because it can be changed into another prime (22972517) 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 as a sum of consecutive naturals, namely, 11486253 + 11486254.

It is an arithmetic number, because the mean of its divisors is an integer number (11486254).

Almost surely, 2^22972507 is an apocalyptic number.

22972507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22972507 is an equidigital number, since it uses as much as digits as its factorization.

22972507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 22972507 is about 4792.9643228382. The cubic root of 22972507 is about 284.2733391317.

The spelling of 22972507 in words is "twenty-two million, nine hundred seventy-two thousand, five hundred seven".