12997117 has 8 divisors (see below), whose sum is σ = 14909696. Its totient is φ = 11098512.

The previous prime is 12997111. The next prime is 12997151. The reversal of 12997117 is 71179921.

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 12997117 - 2⁷ = 12996989 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 (12997111) 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, 1413 + ... + 5290.

It is an arithmetic number, because the mean of its divisors is an integer number (1863712).

Almost surely, 2^12997117 is an apocalyptic number.

It is an amenable number.

12997117 is a deficient number, since it is larger than the sum of its proper divisors (1912579).

12997117 is an equidigital number, since it uses as much as digits as its factorization.

12997117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987.

The product of its digits is 7938, while the sum is 37.

The square root of 12997117 is about 3605.1514531293. The cubic root of 12997117 is about 235.1160856975.

The spelling of 12997117 in words is "twelve million, nine hundred ninety-seven thousand, one hundred seventeen".