13643413 has 6 divisors (see below), whose sum is σ = 15870966. Its totient is φ = 11694312.

The previous prime is 13643407. The next prime is 13643437. The reversal of 13643413 is 31434631.

It is a happy number.

13643413 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7606564 + 6036849 = 2758^2 + 2457^2 .

It is not a de Polignac number, because 13643413 - 2⁹ = 13642901 is a prime.

It is a super-2 number, since 2×13643413² = 372285436577138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13643213) 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 5 ways as a sum of consecutive naturals, for example, 139170 + ... + 139267.

It is an arithmetic number, because the mean of its divisors is an integer number (2645161).

Almost surely, 2^13643413 is an apocalyptic number.

It is an amenable number.

13643413 is a deficient number, since it is larger than the sum of its proper divisors (2227553).

13643413 is an equidigital number, since it uses as much as digits as its factorization.

13643413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278451 (or 278444 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 13643413 is about 3693.6990944039. The cubic root of 13643413 is about 238.9503523678.

The spelling of 13643413 in words is "thirteen million, six hundred forty-three thousand, four hundred thirteen".