22972757 has 2 divisors, whose sum is σ = 22972758. Its totient is φ = 22972756.

The previous prime is 22972717. The next prime is 22972777. The reversal of 22972757 is 75727922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21613201 + 1359556 = 4649^2 + 1166^2 .

It is a cyclic number.

It is not a de Polignac number, because 22972757 - 2⁶ = 22972693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22972717) 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, 11486378 + 11486379.

It is an arithmetic number, because the mean of its divisors is an integer number (11486379).

Almost surely, 2^22972757 is an apocalyptic number.

It is an amenable number.

22972757 is a deficient number, since it is larger than the sum of its proper divisors (1).

22972757 is an equidigital number, since it uses as much as digits as its factorization.

22972757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123480, while the sum is 41.

The square root of 22972757 is about 4792.9904026610. The cubic root of 22972757 is about 284.2743703364.

The spelling of 22972757 in words is "twenty-two million, nine hundred seventy-two thousand, seven hundred fifty-seven".