8686040 has 64 divisors (see below), whose sum is σ = 22464000. Its totient is φ = 2989440.

The previous prime is 8686003. The next prime is 8686049. The reversal of 8686040 is 406868.

8686040 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8685988 and 8686006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8686049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7841 + ... + 8879.

It is an arithmetic number, because the mean of its divisors is an integer number (351000).

Almost surely, 2^8686040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8686040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11232000).

8686040 is an abundant number, since it is smaller than the sum of its proper divisors (13777960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8686040 is a wasteful number, since it uses less digits than its factorization.

8686040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8686040 is about 2947.2088490638. The cubic root of 8686040 is about 205.5609463186.

The spelling of 8686040 in words is "eight million, six hundred eighty-six thousand, forty".