284804 has 12 divisors (see below), whose sum is σ = 536844. Its totient is φ = 131424.

The previous prime is 284803. The next prime is 284807. The reversal of 284804 is 408482.

284804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 91204 = 440^2 + 302^2 .

It is a super-2 number, since 2×284804² = 162226636832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284804.

It is not an unprimeable number, because it can be changed into a prime (284803) 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, 2687 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (44737).

2²⁸⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

284804 is a deficient number, since it is larger than the sum of its proper divisors (252040).

284804 is a wasteful number, since it uses less digits than its factorization.

284804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 5492 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 284804 is about 533.6703102103. The cubic root of 284804 is about 65.7933542806.

The spelling of 284804 in words is "two hundred eighty-four thousand, eight hundred four".