286804 has 12 divisors (see below), whose sum is σ = 573664. Its totient is φ = 122904.

The previous prime is 286801. The next prime is 286813. The reversal of 286804 is 408682.

286804 = T₃₇ + T₃₈ + ... + T₁₂₀.

286804 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 10243 = 286804 / (2 + 8 + 6 + 8 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286801) 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, 5094 + ... + 5149.

2²⁸⁶⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

286804 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.

286804 is a wasteful number, since it uses less digits than its factorization.

286804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10254 (or 10252 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 286804 is about 535.5408481152. The cubic root of 286804 is about 65.9470036765.

The spelling of 286804 in words is "two hundred eighty-six thousand, eight hundred four".