8686138 has 16 divisors (see below), whose sum is σ = 13916160. Its totient is φ = 4057200.

The previous prime is 8686127. The next prime is 8686141. The reversal of 8686138 is 8316868.

8686138 is a modest number, since divided by 6138 gives 868 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8686138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (869760).

Almost surely, 2^8686138 is an apocalyptic number.

8686138 is a deficient number, since it is larger than the sum of its proper divisors (5230022).

8686138 is a wasteful number, since it uses less digits than its factorization.

8686138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893.

The product of its digits is 55296, while the sum is 40.

The square root of 8686138 is about 2947.2254749170. The cubic root of 8686138 is about 205.5617193942.

The spelling of 8686138 in words is "eight million, six hundred eighty-six thousand, one hundred thirty-eight".