8640086 has 32 divisors (see below), whose sum is σ = 16511040. Its totient is φ = 3298176.

The previous prime is 8640059. The next prime is 8640109. The reversal of 8640086 is 6800468.

8640086 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

8640086 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4460 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^8640086 is an apocalyptic number.

8640086 is a deficient number, since it is larger than the sum of its proper divisors (7870954).

8640086 is a wasteful number, since it uses less digits than its factorization.

8640086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688.

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

The square root of 8640086 is about 2939.4023202005. The cubic root of 8640086 is about 205.1977944227.

The spelling of 8640086 in words is "eight million, six hundred forty thousand, eighty-six".