284231 has 2 divisors, whose sum is σ = 284232. Its totient is φ = 284230.

The previous prime is 284227. The next prime is 284233. The reversal of 284231 is 132482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 284231 - 2² = 284227 is a prime.

It is a super-2 number, since 2×284231² = 161574522722, which contains 22 as substring.

Together with 284233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284231.

It is not a weakly prime, because it can be changed into another prime (284233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142115 + 142116.

It is an arithmetic number, because the mean of its divisors is an integer number (142116).

2²⁸⁴²³¹ is an apocalyptic number.

284231 is a deficient number, since it is larger than the sum of its proper divisors (1).

284231 is an equidigital number, since it uses as much as digits as its factorization.

284231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 284231 is about 533.1331916135. The cubic root of 284231 is about 65.7492012221.

It can be divided in two parts, 284 and 231, that added together give a palindrome (515).

The spelling of 284231 in words is "two hundred eighty-four thousand, two hundred thirty-one".