284871 has 8 divisors (see below), whose sum is σ = 382320. Its totient is φ = 188672.

The previous prime is 284857. The next prime is 284881. The reversal of 284871 is 178482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284871 - 2⁵ = 284839 is a prime.

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 284871.

It is not an unprimeable number, because it can be changed into a prime (284831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (47790).

2²⁸⁴⁸⁷¹ is an apocalyptic number.

284871 is a deficient number, since it is larger than the sum of its proper divisors (97449).

284871 is a wasteful number, since it uses less digits than its factorization.

284871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its digits is 3584, while the sum is 30.

The square root of 284871 is about 533.7330793571. The cubic root of 284871 is about 65.7985131607.

The spelling of 284871 in words is "two hundred eighty-four thousand, eight hundred seventy-one".