13646613 has 12 divisors (see below), whose sum is σ = 19023200. Its totient is φ = 8701176.

The previous prime is 13646593. The next prime is 13646623. The reversal of 13646613 is 31664631.

It is not a de Polignac number, because 13646613 - 2¹⁰ = 13645589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13646623) 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 in 11 ways as a sum of consecutive naturals, for example, 2713 + ... + 5886.

Almost surely, 2^13646613 is an apocalyptic number.

It is an amenable number.

13646613 is a deficient number, since it is larger than the sum of its proper divisors (5376587).

13646613 is an equidigital number, since it uses as much as digits as its factorization.

13646613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648 (or 8625 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 13646613 is about 3694.1322391057. The cubic root of 13646613 is about 238.9690324775.

The spelling of 13646613 in words is "thirteen million, six hundred forty-six thousand, six hundred thirteen".