13646413 has 16 divisors (see below), whose sum is σ = 15334272. Its totient is φ = 12040000.

The previous prime is 13646407. The next prime is 13646419. The reversal of 13646413 is 31464631.

It is an interprime number because it is at equal distance from previous prime (13646407) and next prime (13646419).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13646413 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 (13646419) 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 15 ways as a sum of consecutive naturals, for example, 78795 + ... + 78967.

It is an arithmetic number, because the mean of its divisors is an integer number (958392).

Almost surely, 2^13646413 is an apocalyptic number.

It is an amenable number.

13646413 is a deficient number, since it is larger than the sum of its proper divisors (1687859).

13646413 is a wasteful number, since it uses less digits than its factorization.

13646413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its digits is 5184, while the sum is 28.

The square root of 13646413 is about 3694.1051690497. The cubic root of 13646413 is about 238.9678650562.

It can be divided in two parts, 1364 and 6413, that added together give a palindrome (7777).

The spelling of 13646413 in words is "thirteen million, six hundred forty-six thousand, four hundred thirteen".