13285717 has 2 divisors, whose sum is σ = 13285718. Its totient is φ = 13285716.

The previous prime is 13285711. The next prime is 13285757. The reversal of 13285717 is 71758231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8059921 + 5225796 = 2839^2 + 2286^2 .

It is a cyclic number.

It is not a de Polignac number, because 13285717 - 2³ = 13285709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13285711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6642858 + 6642859.

It is an arithmetic number, because the mean of its divisors is an integer number (6642859).

Almost surely, 2^13285717 is an apocalyptic number.

It is an amenable number.

13285717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13285717 is an equidigital number, since it uses as much as digits as its factorization.

13285717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 34.

The square root of 13285717 is about 3644.9577500981. The cubic root of 13285717 is about 236.8436065774.

It can be divided in two parts, 132 and 85717, that added together give a square (85849 = 293²).

The spelling of 13285717 in words is "thirteen million, two hundred eighty-five thousand, seven hundred seventeen".