284065 has 4 divisors (see below), whose sum is σ = 340884. Its totient is φ = 227248.

The previous prime is 284059. The next prime is 284083. The reversal of 284065 is 560482.

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

It can be written as a sum of positive squares in 2 ways, for example, as 214369 + 69696 = 463^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 284065 - 2³ = 284057 is a prime.

It is a d-powerful number, because it can be written as 2² + 8⁴ + 0 + 4 + 6⁷ + 5² .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28402 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (85221).

2²⁸⁴⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

284065 is a deficient number, since it is larger than the sum of its proper divisors (56819).

284065 is an equidigital number, since it uses as much as digits as its factorization.

284065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56818.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 284065 is about 532.9774854532. The cubic root of 284065 is about 65.7363988502.

The spelling of 284065 in words is "two hundred eighty-four thousand, sixty-five".