286829 has 4 divisors (see below), whose sum is σ = 289884. Its totient is φ = 283776.

The previous prime is 286813. The next prime is 286831. The reversal of 286829 is 928682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 198025 = 298^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 286829 - 2⁴ = 286813 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 8² + 8⁶ + 6² + 2¹⁴ + 9 .

It is a Duffinian number.

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 286829.

It is not an unprimeable number, because it can be changed into a prime (286859) 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, 1382 + ... + 1575.

It is an arithmetic number, because the mean of its divisors is an integer number (72471).

2²⁸⁶⁸²⁹ is an apocalyptic number.

It is an amenable number.

286829 is a deficient number, since it is larger than the sum of its proper divisors (3055).

286829 is an equidigital number, since it uses as much as digits as its factorization.

286829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its digits is 13824, while the sum is 35.

The square root of 286829 is about 535.5641884966. The cubic root of 286829 is about 65.9489197669.

The spelling of 286829 in words is "two hundred eighty-six thousand, eight hundred twenty-nine".