284806 has 4 divisors (see below), whose sum is σ = 427212. Its totient is φ = 142402.

The previous prime is 284803. The next prime is 284807. The reversal of 284806 is 608482.

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

It is a super-2 number, since 2×284806² = 162228915272, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71200 + ... + 71203.

It is an arithmetic number, because the mean of its divisors is an integer number (106803).

2²⁸⁴⁸⁰⁶ is an apocalyptic number.

284806 is a deficient number, since it is larger than the sum of its proper divisors (142406).

284806 is a wasteful number, since it uses less digits than its factorization.

284806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142405.

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

The square root of 284806 is about 533.6721840231. The cubic root of 284806 is about 65.7935082887.

The spelling of 284806 in words is "two hundred eighty-four thousand, eight hundred six".