866000086 has 16 divisors (see below), whose sum is σ = 1485231264. Its totient is φ = 370977984.

The previous prime is 866000081. The next prime is 866000119. The reversal of 866000086 is 680000668.

It is a happy number.

It is a super-2 number, since 2×866000086² = 1499912297904014792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866000081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22116 + ... + 47128.

It is an arithmetic number, because the mean of its divisors is an integer number (92826954).

Almost surely, 2^866000086 is an apocalyptic number.

866000086 is a deficient number, since it is larger than the sum of its proper divisors (619231178).

866000086 is a wasteful number, since it uses less digits than its factorization.

866000086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27495.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 866000086 is about 29427.8794003238. The cubic root of 866000086 is about 953.1750042973.

The spelling of 866000086 in words is "eight hundred sixty-six million, eighty-six", and thus it is an aban number.