863286 has 8 divisors (see below), whose sum is σ = 1726584. Its totient is φ = 287760.

The previous prime is 863279. The next prime is 863287. The reversal of 863286 is 682368.

863286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

863286 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71935 + ... + 71946.

It is an arithmetic number, because the mean of its divisors is an integer number (215823).

2⁸⁶³²⁸⁶ is an apocalyptic number.

863286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

863286 is a wasteful number, since it uses less digits than its factorization.

863286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143886.

The product of its digits is 13824, while the sum is 33.

The square root of 863286 is about 929.1318528605. The cubic root of 863286 is about 95.2178196758.

The spelling of 863286 in words is "eight hundred sixty-three thousand, two hundred eighty-six".