286879 has 4 divisors (see below), whose sum is σ = 299376. Its totient is φ = 274384.

The previous prime is 286873. The next prime is 286927. The reversal of 286879 is 978682.

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

It is a cyclic number.

It is not a de Polignac number, because 286879 - 2⁷ = 286751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286873) 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, 6214 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2²⁸⁶⁸⁷⁹ is an apocalyptic number.

286879 is a deficient number, since it is larger than the sum of its proper divisors (12497).

286879 is a wasteful number, since it uses less digits than its factorization.

286879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496.

The product of its digits is 48384, while the sum is 40.

The square root of 286879 is about 535.6108662079. The cubic root of 286879 is about 65.9527516137.

The spelling of 286879 in words is "two hundred eighty-six thousand, eight hundred seventy-nine".