12566627 has 2 divisors, whose sum is σ = 12566628. Its totient is φ = 12566626.

The previous prime is 12566597. The next prime is 12566629. The reversal of 12566627 is 72666521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12566627 - 2¹⁰ = 12565603 is a prime.

It is a super-2 number, since 2×12566627² = 315840228314258, which contains 22 as substring.

Together with 12566629, 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 (12566629) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6283313 + 6283314.

It is an arithmetic number, because the mean of its divisors is an integer number (6283314).

Almost surely, 2^12566627 is an apocalyptic number.

12566627 is a deficient number, since it is larger than the sum of its proper divisors (1).

12566627 is an equidigital number, since it uses as much as digits as its factorization.

12566627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 12566627 is about 3544.9438641536. The cubic root of 12566627 is about 232.4910514149.

The spelling of 12566627 in words is "twelve million, five hundred sixty-six thousand, six hundred twenty-seven".