284279 has 4 divisors (see below), whose sum is σ = 285600. Its totient is φ = 282960.

The previous prime is 284269. The next prime is 284293. The reversal of 284279 is 972482.

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 284279 - 2⁸ = 284023 is a prime.

It is a Duffinian 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 (284269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (71400).

2²⁸⁴²⁷⁹ is an apocalyptic number.

284279 is a deficient number, since it is larger than the sum of its proper divisors (1321).

284279 is a wasteful number, since it uses less digits than its factorization.

284279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its digits is 8064, while the sum is 32.

The square root of 284279 is about 533.1782066064. The cubic root of 284279 is about 65.7529021836.

The spelling of 284279 in words is "two hundred eighty-four thousand, two hundred seventy-nine".