12878267 has 2 divisors, whose sum is σ = 12878268. Its totient is φ = 12878266.

The previous prime is 12878227. The next prime is 12878287. The reversal of 12878267 is 76287821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12878267 - 2¹⁰ = 12877243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12878227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439133 + 6439134.

It is an arithmetic number, because the mean of its divisors is an integer number (6439134).

Almost surely, 2^12878267 is an apocalyptic number.

12878267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878267 is an equidigital number, since it uses as much as digits as its factorization.

12878267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 41.

The square root of 12878267 is about 3588.6302400777. The cubic root of 12878267 is about 234.3972299389.

The spelling of 12878267 in words is "twelve million, eight hundred seventy-eight thousand, two hundred sixty-seven".