12847117 has 2 divisors, whose sum is σ = 12847118. Its totient is φ = 12847116.

The previous prime is 12847111. The next prime is 12847139. The reversal of 12847117 is 71174821.

12847117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8462281 + 4384836 = 2909^2 + 2094^2 .

It is an emirp because it is prime and its reverse (71174821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12847117 - 2¹¹ = 12845069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12847111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6423558 + 6423559.

It is an arithmetic number, because the mean of its divisors is an integer number (6423559).

Almost surely, 2^12847117 is an apocalyptic number.

It is an amenable number.

12847117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12847117 is an equidigital number, since it uses as much as digits as its factorization.

12847117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 31.

The square root of 12847117 is about 3584.2875163692. The cubic root of 12847117 is about 234.2080903965.

The spelling of 12847117 in words is "twelve million, eight hundred forty-seven thousand, one hundred seventeen".