284493 has 16 divisors (see below), whose sum is σ = 426816. Its totient is φ = 167040.

The previous prime is 284489. The next prime is 284507. The reversal of 284493 is 394482.

It is a happy number.

It is not a de Polignac number, because 284493 - 2² = 284489 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 284493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (26676).

2²⁸⁴⁴⁹³ is an apocalyptic number.

It is an amenable number.

284493 is a deficient number, since it is larger than the sum of its proper divisors (142323).

284493 is a wasteful number, since it uses less digits than its factorization.

284493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284.

The product of its digits is 6912, while the sum is 30.

The square root of 284493 is about 533.3788522242. The cubic root of 284493 is about 65.7693972369.

It can be divided in two parts, 284 and 493, that added together give a palindrome (777).

The spelling of 284493 in words is "two hundred eighty-four thousand, four hundred ninety-three".