12547317 has 8 divisors (see below), whose sum is σ = 16883680. Its totient is φ = 8287920.

The previous prime is 12547307. The next prime is 12547319. The reversal of 12547317 is 71374521.

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

It is not a de Polignac number, because 12547317 - 2¹⁸ = 12285173 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 (12547319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18859 + ... + 19512.

It is an arithmetic number, because the mean of its divisors is an integer number (2110460).

Almost surely, 2^12547317 is an apocalyptic number.

It is an amenable number.

12547317 is a deficient number, since it is larger than the sum of its proper divisors (4336363).

12547317 is a wasteful number, since it uses less digits than its factorization.

12547317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38483.

The product of its digits is 5880, while the sum is 30.

The square root of 12547317 is about 3542.2192196418. The cubic root of 12547317 is about 232.3719077059.

The spelling of 12547317 in words is "twelve million, five hundred forty-seven thousand, three hundred seventeen".