12392717 has 2 divisors, whose sum is σ = 12392718. Its totient is φ = 12392716.

The previous prime is 12392713. The next prime is 12392719. The reversal of 12392717 is 71729321.

12392717 is digitally balanced in base 2, 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., 12348196 + 44521 = 3514^2 + 211^2 .

It is an emirp because it is prime and its reverse (71729321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12392717 - 2² = 12392713 is a prime.

Together with 12392719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12392713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196358 + 6196359.

It is an arithmetic number, because the mean of its divisors is an integer number (6196359).

Almost surely, 2^12392717 is an apocalyptic number.

It is an amenable number.

12392717 is a deficient number, since it is larger than the sum of its proper divisors (1).

12392717 is an equidigital number, since it uses as much as digits as its factorization.

12392717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 32.

The square root of 12392717 is about 3520.3291039333. The cubic root of 12392717 is about 231.4135816530.

The spelling of 12392717 in words is "twelve million, three hundred ninety-two thousand, seven hundred seventeen".