22638107 has 2 divisors, whose sum is σ = 22638108. Its totient is φ = 22638106.

The previous prime is 22638037. The next prime is 22638113. The reversal of 22638107 is 70183622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22638107 - 2¹⁸ = 22375963 is a prime.

It is equal to p_1426862 and since 22638107 and 1426862 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22638107.

It is not a weakly prime, because it can be changed into another prime (22638127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11319053 + 11319054.

It is an arithmetic number, because the mean of its divisors is an integer number (11319054).

Almost surely, 2^22638107 is an apocalyptic number.

22638107 is a deficient number, since it is larger than the sum of its proper divisors (1).

22638107 is an equidigital number, since it uses as much as digits as its factorization.

22638107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 22638107 is about 4757.9519753776. The cubic root of 22638107 is about 282.8872471372.

The spelling of 22638107 in words is "twenty-two million, six hundred thirty-eight thousand, one hundred seven".