284836 has 6 divisors (see below), whose sum is σ = 498470. Its totient is φ = 142416.

The previous prime is 284833. The next prime is 284839. The reversal of 284836 is 638482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (284833) and next prime (284839).

It can be written as a sum of positive squares in only one way, i.e., 155236 + 129600 = 394^2 + 360^2 .

It is a super-2 number, since 2×284836² = 162263093792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284798 and 284807.

It is not an unprimeable number, because it can be changed into a prime (284831) 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, 35601 + ... + 35608.

2²⁸⁴⁸³⁶ is an apocalyptic number.

It is an amenable number.

284836 is a deficient number, since it is larger than the sum of its proper divisors (213634).

284836 is a wasteful number, since it uses less digits than its factorization.

284836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71213 (or 71211 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 284836 is about 533.7002904253. The cubic root of 284836 is about 65.7958183243.

The spelling of 284836 in words is "two hundred eighty-four thousand, eight hundred thirty-six".