13435663 has 2 divisors, whose sum is σ = 13435664. Its totient is φ = 13435662.

The previous prime is 13435649. The next prime is 13435673. The reversal of 13435663 is 36653431.

It is a strong prime.

It is an emirp because it is prime and its reverse (36653431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13435663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13435673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6717831 + 6717832.

It is an arithmetic number, because the mean of its divisors is an integer number (6717832).

Almost surely, 2^13435663 is an apocalyptic number.

13435663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13435663 is an equidigital number, since it uses as much as digits as its factorization.

13435663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 13435663 is about 3665.4690013694. The cubic root of 13435663 is about 237.7313011632.

The spelling of 13435663 in words is "thirteen million, four hundred thirty-five thousand, six hundred sixty-three".