22953289 has 2 divisors, whose sum is σ = 22953290. Its totient is φ = 22953288.

The previous prime is 22953277. The next prime is 22953313. The reversal of 22953289 is 98235922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15840400 + 7112889 = 3980^2 + 2667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22953289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22953269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11476644 + 11476645.

It is an arithmetic number, because the mean of its divisors is an integer number (11476645).

Almost surely, 2^22953289 is an apocalyptic number.

It is an amenable number.

22953289 is a deficient number, since it is larger than the sum of its proper divisors (1).

22953289 is an equidigital number, since it uses as much as digits as its factorization.

22953289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 22953289 is about 4790.9590897857. The cubic root of 22953289 is about 284.1940459550.

The spelling of 22953289 in words is "twenty-two million, nine hundred fifty-three thousand, two hundred eighty-nine".