13648717 has 2 divisors, whose sum is σ = 13648718. Its totient is φ = 13648716.

The previous prime is 13648699. The next prime is 13648721. The reversal of 13648717 is 71784631.

13648717 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., 11249316 + 2399401 = 3354^2 + 1549^2 .

It is a cyclic number.

It is not a de Polignac number, because 13648717 - 2¹¹ = 13646669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13648727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6824358 + 6824359.

It is an arithmetic number, because the mean of its divisors is an integer number (6824359).

Almost surely, 2^13648717 is an apocalyptic number.

It is an amenable number.

13648717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13648717 is an equidigital number, since it uses as much as digits as its factorization.

13648717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 13648717 is about 3694.4170040752. The cubic root of 13648717 is about 238.9813130584.

It can be divided in two parts, 13648 and 717, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 13648717 in words is "thirteen million, six hundred forty-eight thousand, seven hundred seventeen".