22975709 has 2 divisors, whose sum is σ = 22975710. Its totient is φ = 22975708.

The previous prime is 22975679. The next prime is 22975723. The reversal of 22975709 is 90757922.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 1092025 = 4678^2 + 1045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22975709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22975759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11487854 + 11487855.

It is an arithmetic number, because the mean of its divisors is an integer number (11487855).

Almost surely, 2^22975709 is an apocalyptic number.

It is an amenable number.

22975709 is a deficient number, since it is larger than the sum of its proper divisors (1).

22975709 is an equidigital number, since it uses as much as digits as its factorization.

22975709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 22975709 is about 4793.2983424778. The cubic root of 22975709 is about 284.2865462368.

The spelling of 22975709 in words is "twenty-two million, nine hundred seventy-five thousand, seven hundred nine".