12947317 has 8 divisors (see below), whose sum is σ = 13271040. Its totient is φ = 12626640.

The previous prime is 12947293. The next prime is 12947323. The reversal of 12947317 is 71374921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12947317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12947327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9484 + ... + 10762.

It is an arithmetic number, because the mean of its divisors is an integer number (1658880).

Almost surely, 2^12947317 is an apocalyptic number.

It is an amenable number.

12947317 is a deficient number, since it is larger than the sum of its proper divisors (323723).

12947317 is a wasteful number, since it uses less digits than its factorization.

12947317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its digits is 10584, while the sum is 34.

The square root of 12947317 is about 3598.2380410418. The cubic root of 12947317 is about 234.8154095934.

The spelling of 12947317 in words is "twelve million, nine hundred forty-seven thousand, three hundred seventeen".