12863687 has 2 divisors, whose sum is σ = 12863688. Its totient is φ = 12863686.

The previous prime is 12863681. The next prime is 12863689. The reversal of 12863687 is 78636821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12863687 - 2⁴ = 12863671 is a prime.

Together with 12863689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12863681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431843 + 6431844.

It is an arithmetic number, because the mean of its divisors is an integer number (6431844).

Almost surely, 2^12863687 is an apocalyptic number.

12863687 is a deficient number, since it is larger than the sum of its proper divisors (1).

12863687 is an equidigital number, since it uses as much as digits as its factorization.

12863687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 12863687 is about 3586.5982490377. The cubic root of 12863687 is about 234.3087397167.

The spelling of 12863687 in words is "twelve million, eight hundred sixty-three thousand, six hundred eighty-seven".