13444663 has 2 divisors, whose sum is σ = 13444664. Its totient is φ = 13444662.

The previous prime is 13444643. The next prime is 13444721. The reversal of 13444663 is 36644431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13444663 - 2¹⁷ = 13313591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13444633) 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, 6722331 + 6722332.

It is an arithmetic number, because the mean of its divisors is an integer number (6722332).

Almost surely, 2^13444663 is an apocalyptic number.

13444663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444663 is an equidigital number, since it uses as much as digits as its factorization.

13444663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 13444663 is about 3666.6964695758. The cubic root of 13444663 is about 237.7843714669.

The spelling of 13444663 in words is "thirteen million, four hundred forty-four thousand, six hundred sixty-three".