284347 has 8 divisors (see below), whose sum is σ = 332000. Its totient is φ = 243432.

The previous prime is 284341. The next prime is 284357. The reversal of 284347 is 743482.

It is not a de Polignac number, because 284347 - 2¹¹ = 282299 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (284341) 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 7 ways as a sum of consecutive naturals, for example, 72 + ... + 757.

It is an arithmetic number, because the mean of its divisors is an integer number (41500).

2²⁸⁴³⁴⁷ is an apocalyptic number.

284347 is a deficient number, since it is larger than the sum of its proper divisors (47653).

284347 is an frugal number, since it uses more digits than its factorization.

284347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 836 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 284347 is about 533.2419713413. The cubic root of 284347 is about 65.7581444994.

It can be divided in two parts, 28434 and 7, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 284347 in words is "two hundred eighty-four thousand, three hundred forty-seven".