12427859 has 2 divisors, whose sum is σ = 12427860. Its totient is φ = 12427858.

The previous prime is 12427847. The next prime is 12427861. The reversal of 12427859 is 95872421.

It is a strong prime.

It is an emirp because it is prime and its reverse (95872421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12427859 - 2⁸ = 12427603 is a prime.

Together with 12427861, 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 (12427759) 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, 6213929 + 6213930.

It is an arithmetic number, because the mean of its divisors is an integer number (6213930).

Almost surely, 2^12427859 is an apocalyptic number.

12427859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12427859 is an equidigital number, since it uses as much as digits as its factorization.

12427859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 12427859 is about 3525.3168651910. The cubic root of 12427859 is about 231.6321148776.

The spelling of 12427859 in words is "twelve million, four hundred twenty-seven thousand, eight hundred fifty-nine".