22123393 has 2 divisors, whose sum is σ = 22123394. Its totient is φ = 22123392.

The previous prime is 22123351. The next prime is 22123399. The reversal of 22123393 is 39332122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22118209 + 5184 = 4703^2 + 72^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123393 - 2²¹ = 20026241 is a prime.

It is not a weakly prime, because it can be changed into another prime (22123399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061696 + 11061697.

It is an arithmetic number, because the mean of its divisors is an integer number (11061697).

Almost surely, 2^22123393 is an apocalyptic number.

It is an amenable number.

22123393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123393 is an equidigital number, since it uses as much as digits as its factorization.

22123393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 22123393 is about 4703.5511052821. The cubic root of 22123393 is about 280.7268234155.

The spelling of 22123393 in words is "twenty-two million, one hundred twenty-three thousand, three hundred ninety-three".