12687583 has 2 divisors, whose sum is σ = 12687584. Its totient is φ = 12687582.

The previous prime is 12687551. The next prime is 12687599. The reversal of 12687583 is 38578621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12687583 - 2⁵ = 12687551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12687523) 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, 6343791 + 6343792.

It is an arithmetic number, because the mean of its divisors is an integer number (6343792).

Almost surely, 2^12687583 is an apocalyptic number.

12687583 is a deficient number, since it is larger than the sum of its proper divisors (1).

12687583 is an equidigital number, since it uses as much as digits as its factorization.

12687583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 12687583 is about 3561.9633630906. The cubic root of 12687583 is about 233.2345933694.

The spelling of 12687583 in words is "twelve million, six hundred eighty-seven thousand, five hundred eighty-three".