12859787 has 2 divisors, whose sum is σ = 12859788. Its totient is φ = 12859786.

The previous prime is 12859727. The next prime is 12859793. The reversal of 12859787 is 78795821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12859787 - 2⁶ = 12859723 is a prime.

It is not a weakly prime, because it can be changed into another prime (12859727) 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, 6429893 + 6429894.

It is an arithmetic number, because the mean of its divisors is an integer number (6429894).

Almost surely, 2^12859787 is an apocalyptic number.

12859787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12859787 is an equidigital number, since it uses as much as digits as its factorization.

12859787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 47.

The square root of 12859787 is about 3586.0545171539. The cubic root of 12859787 is about 234.2850581587.

The spelling of 12859787 in words is "twelve million, eight hundred fifty-nine thousand, seven hundred eighty-seven".