284808 has 16 divisors (see below), whose sum is σ = 712080. Its totient is φ = 94928.

The previous prime is 284807. The next prime is 284813. The reversal of 284808 is 808482.

It is a super-2 number, since 2×284808² = 162231193728, which contains 22 as substring.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284808.

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, 5910 + ... + 5957.

It is an arithmetic number, because the mean of its divisors is an integer number (44505).

2²⁸⁴⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

284808 is an abundant number, since it is smaller than the sum of its proper divisors (427272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284808 is a wasteful number, since it uses less digits than its factorization.

284808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11876 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 284808 is about 533.6740578293. The cubic root of 284808 is about 65.7936622961.

The spelling of 284808 in words is "two hundred eighty-four thousand, eight hundred eight".