8686687 has 2 divisors, whose sum is σ = 8686688. Its totient is φ = 8686686.

The previous prime is 8686679. The next prime is 8686703. The reversal of 8686687 is 7866868.

8686687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8686687 - 2³ = 8686679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8686687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8686087) 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, 4343343 + 4343344.

It is an arithmetic number, because the mean of its divisors is an integer number (4343344).

Almost surely, 2^8686687 is an apocalyptic number.

8686687 is a deficient number, since it is larger than the sum of its proper divisors (1).

8686687 is an equidigital number, since it uses as much as digits as its factorization.

8686687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 8686687 is about 2947.3186118912. The cubic root of 8686687 is about 205.5660500878.

The spelling of 8686687 in words is "eight million, six hundred eighty-six thousand, six hundred eighty-seven".