13363643 has 2 divisors, whose sum is σ = 13363644. Its totient is φ = 13363642.

The previous prime is 13363639. The next prime is 13363657. The reversal of 13363643 is 34636331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13363643 - 2² = 13363639 is a prime.

It is a Sophie Germain prime.

It is equal to p₈₇₁₃₈₂ and since 13363643 and 871382 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13363243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6681821 + 6681822.

It is an arithmetic number, because the mean of its divisors is an integer number (6681822).

Almost surely, 2^13363643 is an apocalyptic number.

13363643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13363643 is an equidigital number, since it uses as much as digits as its factorization.

13363643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 29.

The square root of 13363643 is about 3655.6316827602. The cubic root of 13363643 is about 237.3057647371.

Adding to 13363643 its reverse (34636331), we get a palindrome (47999974).

The spelling of 13363643 in words is "thirteen million, three hundred sixty-three thousand, six hundred forty-three".