13339643 has 2 divisors, whose sum is σ = 13339644. Its totient is φ = 13339642.

The previous prime is 13339639. The next prime is 13339649. The reversal of 13339643 is 34693331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13339643 - 2² = 13339639 is a prime.

It is not a weakly prime, because it can be changed into another prime (13339649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6669821 + 6669822.

It is an arithmetic number, because the mean of its divisors is an integer number (6669822).

Almost surely, 2^13339643 is an apocalyptic number.

13339643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13339643 is an equidigital number, since it uses as much as digits as its factorization.

13339643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 32.

The square root of 13339643 is about 3652.3476012012. The cubic root of 13339643 is about 237.1636190858.

The spelling of 13339643 in words is "thirteen million, three hundred thirty-nine thousand, six hundred forty-three".