13825717 has 2 divisors, whose sum is σ = 13825718. Its totient is φ = 13825716.

The previous prime is 13825703. The next prime is 13825741. The reversal of 13825717 is 71752831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13586596 + 239121 = 3686^2 + 489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13825717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13825817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912858 + 6912859.

It is an arithmetic number, because the mean of its divisors is an integer number (6912859).

Almost surely, 2^13825717 is an apocalyptic number.

It is an amenable number.

13825717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13825717 is an equidigital number, since it uses as much as digits as its factorization.

13825717 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 13825717 is about 3718.2949049262. The cubic root of 13825717 is about 240.0099359312.

The spelling of 13825717 in words is "thirteen million, eight hundred twenty-five thousand, seven hundred seventeen".