22652639 has 2 divisors, whose sum is σ = 22652640. Its totient is φ = 22652638.

The previous prime is 22652587. The next prime is 22652671. The reversal of 22652639 is 93625622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22652639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22652599 and 22652608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22652039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11326319 + 11326320.

It is an arithmetic number, because the mean of its divisors is an integer number (11326320).

Almost surely, 2^22652639 is an apocalyptic number.

22652639 is a deficient number, since it is larger than the sum of its proper divisors (1).

22652639 is an equidigital number, since it uses as much as digits as its factorization.

22652639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 22652639 is about 4759.4788580264. The cubic root of 22652639 is about 282.9477651266.

The spelling of 22652639 in words is "twenty-two million, six hundred fifty-two thousand, six hundred thirty-nine".