22636631 has 2 divisors, whose sum is σ = 22636632. Its totient is φ = 22636630.

The previous prime is 22636597. The next prime is 22636661. The reversal of 22636631 is 13663622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22636631 - 2¹⁸ = 22374487 is a prime.

It is a super-2 number, since 2×22636631² = 1024834126060322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22636594 and 22636603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22636661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318315 + 11318316.

It is an arithmetic number, because the mean of its divisors is an integer number (11318316).

Almost surely, 2^22636631 is an apocalyptic number.

22636631 is a deficient number, since it is larger than the sum of its proper divisors (1).

22636631 is an equidigital number, since it uses as much as digits as its factorization.

22636631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 22636631 is about 4757.7968640958. The cubic root of 22636631 is about 282.8810989398.

The spelling of 22636631 in words is "twenty-two million, six hundred thirty-six thousand, six hundred thirty-one".