22444663 has 2 divisors, whose sum is σ = 22444664. Its totient is φ = 22444662.

The previous prime is 22444661. The next prime is 22444673. The reversal of 22444663 is 36644422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22444663 - 2¹ = 22444661 is a prime.

Together with 22444661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22444661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222331 + 11222332.

It is an arithmetic number, because the mean of its divisors is an integer number (11222332).

Almost surely, 2^22444663 is an apocalyptic number.

22444663 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444663 is an equidigital number, since it uses as much as digits as its factorization.

22444663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 31.

The square root of 22444663 is about 4737.5798674007. The cubic root of 22444663 is about 282.0791781759.

The spelling of 22444663 in words is "twenty-two million, four hundred forty-four thousand, six hundred sixty-three".