22689893 has 2 divisors, whose sum is σ = 22689894. Its totient is φ = 22689892.

The previous prime is 22689871. The next prime is 22689911. The reversal of 22689893 is 39898622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14122564 + 8567329 = 3758^2 + 2927^2 .

It is a cyclic number.

It is not a de Polignac number, because 22689893 - 2⁶ = 22689829 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 (22689833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11344946 + 11344947.

It is an arithmetic number, because the mean of its divisors is an integer number (11344947).

Almost surely, 2^22689893 is an apocalyptic number.

It is an amenable number.

22689893 is a deficient number, since it is larger than the sum of its proper divisors (1).

22689893 is an equidigital number, since it uses as much as digits as its factorization.

22689893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 22689893 is about 4763.3909140443. The cubic root of 22689893 is about 283.1027899319.

The spelling of 22689893 in words is "twenty-two million, six hundred eighty-nine thousand, eight hundred ninety-three".