22238663 has 2 divisors, whose sum is σ = 22238664. Its totient is φ = 22238662.

The previous prime is 22238639. The next prime is 22238681. The reversal of 22238663 is 36683222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22238663 - 2⁶ = 22238599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22238603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11119331 + 11119332.

It is an arithmetic number, because the mean of its divisors is an integer number (11119332).

Almost surely, 2^22238663 is an apocalyptic number.

22238663 is a deficient number, since it is larger than the sum of its proper divisors (1).

22238663 is an equidigital number, since it uses as much as digits as its factorization.

22238663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 22238663 is about 4715.7886933153. The cubic root of 22238663 is about 281.2135381209.

The spelling of 22238663 in words is "twenty-two million, two hundred thirty-eight thousand, six hundred sixty-three".