12873197 has 2 divisors, whose sum is σ = 12873198. Its totient is φ = 12873196.

The previous prime is 12873193. The next prime is 12873229. The reversal of 12873197 is 79137821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8404201 + 4468996 = 2899^2 + 2114^2 .

It is a cyclic number.

It is not a de Polignac number, because 12873197 - 2² = 12873193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12873197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12873191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436598 + 6436599.

It is an arithmetic number, because the mean of its divisors is an integer number (6436599).

Almost surely, 2^12873197 is an apocalyptic number.

It is an amenable number.

12873197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12873197 is an equidigital number, since it uses as much as digits as its factorization.

12873197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 12873197 is about 3587.9237728804. The cubic root of 12873197 is about 234.3664662256.

The spelling of 12873197 in words is "twelve million, eight hundred seventy-three thousand, one hundred ninety-seven".