12717397 has 8 divisors (see below), whose sum is σ = 15855552. Its totient is φ = 9909600.

The previous prime is 12717361. The next prime is 12717407. The reversal of 12717397 is 79371721.

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

It is a cyclic number.

It is not a de Polignac number, because 12717397 - 2⁷ = 12717269 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 (12717317) 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, 82504 + ... + 82657.

It is an arithmetic number, because the mean of its divisors is an integer number (1981944).

Almost surely, 2^12717397 is an apocalyptic number.

It is an amenable number.

12717397 is a deficient number, since it is larger than the sum of its proper divisors (3138155).

12717397 is a wasteful number, since it uses less digits than its factorization.

12717397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165179.

The product of its digits is 18522, while the sum is 37.

The square root of 12717397 is about 3566.1459588749. The cubic root of 12717397 is about 233.4171397369.

It can be divided in two parts, 1271 and 7397, that added together give a palindrome (8668).

The spelling of 12717397 in words is "twelve million, seven hundred seventeen thousand, three hundred ninety-seven".