286117 has 6 divisors (see below), whose sum is σ = 310002. Its totient is φ = 263952.

The previous prime is 286103. The next prime is 286129. The reversal of 286117 is 711682.

It can be written as a sum of positive squares in 3 ways, for example, as 961 + 285156 = 31^2 + 534^2 .

It is not a de Polignac number, because 286117 - 2¹⁵ = 253349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 286091 and 286100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678 + ... + 1015.

It is an arithmetic number, because the mean of its divisors is an integer number (51667).

2²⁸⁶¹¹⁷ is an apocalyptic number.

It is an amenable number.

286117 is a deficient number, since it is larger than the sum of its proper divisors (23885).

286117 is a wasteful number, since it uses less digits than its factorization.

286117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1706 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 286117 is about 534.8990558975. The cubic root of 286117 is about 65.8943058826.

Adding to 286117 its reverse (711682), we get a palindrome (997799).

The spelling of 286117 in words is "two hundred eighty-six thousand, one hundred seventeen".