284263 has 4 divisors (see below), whose sum is σ = 324880. Its totient is φ = 243648.

The previous prime is 284261. The next prime is 284267. The reversal of 284263 is 362482.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 284263 - 2¹ = 284261 is a prime.

It is a Duffinian number.

284263 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284261) 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, 20298 + ... + 20311.

It is an arithmetic number, because the mean of its divisors is an integer number (81220).

2²⁸⁴²⁶³ is an apocalyptic number.

284263 is a deficient number, since it is larger than the sum of its proper divisors (40617).

284263 is an equidigital number, since it uses as much as digits as its factorization.

284263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40616.

The product of its digits is 2304, while the sum is 25.

The square root of 284263 is about 533.1632020310. The cubic root of 284263 is about 65.7516685761.

The spelling of 284263 in words is "two hundred eighty-four thousand, two hundred sixty-three".