12867247 has 2 divisors, whose sum is σ = 12867248. Its totient is φ = 12867246.

The previous prime is 12867229. The next prime is 12867269. The reversal of 12867247 is 74276821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12867247 - 2¹¹ = 12865199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12867227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6433623 + 6433624.

It is an arithmetic number, because the mean of its divisors is an integer number (6433624).

Almost surely, 2^12867247 is an apocalyptic number.

12867247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12867247 is an equidigital number, since it uses as much as digits as its factorization.

12867247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 12867247 is about 3587.0945067004. The cubic root of 12867247 is about 234.3303525502.

The spelling of 12867247 in words is "twelve million, eight hundred sixty-seven thousand, two hundred forty-seven".