12797171 has 2 divisors, whose sum is σ = 12797172. Its totient is φ = 12797170.

The previous prime is 12797143. The next prime is 12797173. The reversal of 12797171 is 17179721.

12797171 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12797171 is a prime.

Together with 12797173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12797173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6398585 + 6398586.

It is an arithmetic number, because the mean of its divisors is an integer number (6398586).

Almost surely, 2^12797171 is an apocalyptic number.

12797171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12797171 is an equidigital number, since it uses as much as digits as its factorization.

12797171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6174, while the sum is 35.

The square root of 12797171 is about 3577.3133773825. The cubic root of 12797171 is about 233.9041843577.

The spelling of 12797171 in words is "twelve million, seven hundred ninety-seven thousand, one hundred seventy-one".