866006286 has 16 divisors (see below), whose sum is σ = 1742640384. Its totient is φ = 286897464.

The previous prime is 866006257. The next prime is 866006303. The reversal of 866006286 is 682600668.

It is a Curzon number.

It is a congruent number.

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, 441766 + ... + 443721.

It is an arithmetic number, because the mean of its divisors is an integer number (108915024).

Almost surely, 2^866006286 is an apocalyptic number.

866006286 is an abundant number, since it is smaller than the sum of its proper divisors (876634098).

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

866006286 is a wasteful number, since it uses less digits than its factorization.

866006286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885655.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 866006286 is about 29427.9847424182. The cubic root of 866006286 is about 953.1772789972.

The spelling of 866006286 in words is "eight hundred sixty-six million, six thousand, two hundred eighty-six".