8701686 has 24 divisors (see below), whose sum is σ = 21547344. Its totient is φ = 2486160.

The previous prime is 8701657. The next prime is 8701703. The reversal of 8701686 is 6861078.

8701686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8701686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34405 + ... + 34656.

It is an arithmetic number, because the mean of its divisors is an integer number (897806).

Almost surely, 2^8701686 is an apocalyptic number.

8701686 is an abundant number, since it is smaller than the sum of its proper divisors (12845658).

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

8701686 is a wasteful number, since it uses less digits than its factorization.

8701686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69076 (or 69073 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8701686 is about 2949.8620306719. The cubic root of 8701686 is about 205.6842966370.

It can be divided in two parts, 870 and 1686, that added together give a triangular number (2556 = T₇₁).

The spelling of 8701686 in words is "eight million, seven hundred one thousand, six hundred eighty-six".