286806 has 16 divisors (see below), whose sum is σ = 617904. Its totient is φ = 88224.

The previous prime is 286801. The next prime is 286813. The reversal of 286806 is 608682.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286806.

It is not an unprimeable number, because it can be changed into a prime (286801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 1916.

It is an arithmetic number, because the mean of its divisors is an integer number (38619).

2²⁸⁶⁸⁰⁶ is an apocalyptic number.

286806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

286806 is an abundant number, since it is smaller than the sum of its proper divisors (331098).

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

286806 is a wasteful number, since it uses less digits than its factorization.

286806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 286806 is about 535.5427153832. The cubic root of 286806 is about 65.9471569678.

The spelling of 286806 in words is "two hundred eighty-six thousand, eight hundred six".