284281 has 4 divisors (see below), whose sum is σ = 288592. Its totient is φ = 279972.

The previous prime is 284269. The next prime is 284293. The reversal of 284281 is 182482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (284269) and next prime (284293).

It is a cyclic number.

It is not a de Polignac number, because 284281 - 2⁷ = 284153 is a prime.

It is a super-2 number, since 2×284281² = 161631373922, which contains 22 as substring.

It is a Duffinian number.

284281 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (284201) 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, 2055 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (72148).

2²⁸⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

284281 is a deficient number, since it is larger than the sum of its proper divisors (4311).

284281 is an equidigital number, since it uses as much as digits as its factorization.

284281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310.

The product of its digits is 1024, while the sum is 25.

The square root of 284281 is about 533.1800821486. The cubic root of 284281 is about 65.7530563813.

It can be divided in two parts, 284 and 281, that added together give a palindrome (565).

The spelling of 284281 in words is "two hundred eighty-four thousand, two hundred eighty-one".