22959749 has 2 divisors, whose sum is σ = 22959750. Its totient is φ = 22959748.

The previous prime is 22959697. The next prime is 22959751. The reversal of 22959749 is 94795922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 3441025 = 4418^2 + 1855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22959749 is a prime.

Together with 22959751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22959779) 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, 11479874 + 11479875.

It is an arithmetic number, because the mean of its divisors is an integer number (11479875).

Almost surely, 2^22959749 is an apocalyptic number.

It is an amenable number.

22959749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22959749 is an equidigital number, since it uses as much as digits as its factorization.

22959749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 22959749 is about 4791.6332288688. The cubic root of 22959749 is about 284.2207047536.

The spelling of 22959749 in words is "twenty-two million, nine hundred fifty-nine thousand, seven hundred forty-nine".