22623659 has 2 divisors, whose sum is σ = 22623660. Its totient is φ = 22623658.

The previous prime is 22623637. The next prime is 22623691. The reversal of 22623659 is 95632622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22623659 - 2¹² = 22619563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22623859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11311829 + 11311830.

It is an arithmetic number, because the mean of its divisors is an integer number (11311830).

Almost surely, 2^22623659 is an apocalyptic number.

22623659 is a deficient number, since it is larger than the sum of its proper divisors (1).

22623659 is an equidigital number, since it uses as much as digits as its factorization.

22623659 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 22623659 is about 4756.4334327309. The cubic root of 22623659 is about 282.8270532828.

The spelling of 22623659 in words is "twenty-two million, six hundred twenty-three thousand, six hundred fifty-nine".