284087 has 6 divisors (see below), whose sum is σ = 302088. Its totient is φ = 267104.

The previous prime is 284083. The next prime is 284093. The reversal of 284087 is 780482.

It is not a de Polignac number, because 284087 - 2² = 284083 is a prime.

It is a d-powerful number, because it can be written as 2¹⁰ + 8⁴ + 0 + 4² + 8⁶ + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284087.

It is not an unprimeable number, because it can be changed into a prime (284083) 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 5 ways as a sum of consecutive naturals, for example, 203 + ... + 780.

It is an arithmetic number, because the mean of its divisors is an integer number (50348).

2²⁸⁴⁰⁸⁷ is an apocalyptic number.

284087 is a deficient number, since it is larger than the sum of its proper divisors (18001).

284087 is an equidigital number, since it uses as much as digits as its factorization.

284087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 284087 is about 532.9981238241. The cubic root of 284087 is about 65.7380958367.

The spelling of 284087 in words is "two hundred eighty-four thousand, eighty-seven".