13644317 has 2 divisors, whose sum is σ = 13644318. Its totient is φ = 13644316.

The previous prime is 13644277. The next prime is 13644329. The reversal of 13644317 is 71344631.

13644317 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 256036 = 3659^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 13644317 - 2¹⁰ = 13643293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13644317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13644347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6822158 + 6822159.

It is an arithmetic number, because the mean of its divisors is an integer number (6822159).

Almost surely, 2^13644317 is an apocalyptic number.

It is an amenable number.

13644317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13644317 is an equidigital number, since it uses as much as digits as its factorization.

13644317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 13644317 is about 3693.8214629297. The cubic root of 13644317 is about 238.9556297948.

Adding to 13644317 its reverse (71344631), we get a palindrome (84988948).

The spelling of 13644317 in words is "thirteen million, six hundred forty-four thousand, three hundred seventeen".