12943277 has 2 divisors, whose sum is σ = 12943278. Its totient is φ = 12943276.

The previous prime is 12943247. The next prime is 12943297. The reversal of 12943277 is 77234921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12823561 + 119716 = 3581^2 + 346^2 .

It is an emirp because it is prime and its reverse (77234921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12943277 - 2²² = 8748973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12943207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471638 + 6471639.

It is an arithmetic number, because the mean of its divisors is an integer number (6471639).

Almost surely, 2^12943277 is an apocalyptic number.

It is an amenable number.

12943277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12943277 is an equidigital number, since it uses as much as digits as its factorization.

12943277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 12943277 is about 3597.6766113702. The cubic root of 12943277 is about 234.7909836076.

The spelling of 12943277 in words is "twelve million, nine hundred forty-three thousand, two hundred seventy-seven".