22663307 has 2 divisors, whose sum is σ = 22663308. Its totient is φ = 22663306.

The previous prime is 22663253. The next prime is 22663313. The reversal of 22663307 is 70336622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22663307 - 2⁸ = 22663051 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22663307.

It is not a weakly prime, because it can be changed into another prime (22663327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11331653 + 11331654.

It is an arithmetic number, because the mean of its divisors is an integer number (11331654).

Almost surely, 2^22663307 is an apocalyptic number.

22663307 is a deficient number, since it is larger than the sum of its proper divisors (1).

22663307 is an equidigital number, since it uses as much as digits as its factorization.

22663307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 22663307 is about 4760.5994370457. The cubic root of 22663307 is about 282.9921751552.

Subtracting from 22663307 its sum of digits (29), we obtain a triangular number (22663278 = T₆₇₃₂).

Adding to 22663307 its reverse (70336622), we get a palindrome (92999929).

The spelling of 22663307 in words is "twenty-two million, six hundred sixty-three thousand, three hundred seven".