285833 has 4 divisors (see below), whose sum is σ = 287508. Its totient is φ = 284160.

The previous prime is 285827. The next prime is 285839. The reversal of 285833 is 338582.

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

It is an interprime number because it is at equal distance from previous prime (285827) and next prime (285839).

It can be written as a sum of positive squares in 2 ways, for example, as 94864 + 190969 = 308^2 + 437^2 .

It is a cyclic number.

It is not a de Polignac number, because 285833 - 2¹² = 281737 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁴ + 8⁶ + 5⁵ + 3 + 3⁴ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285796 and 285805.

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 285833.

It is not an unprimeable number, because it can be changed into a prime (285839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (71877).

2²⁸⁵⁸³³ is an apocalyptic number.

It is an amenable number.

285833 is a deficient number, since it is larger than the sum of its proper divisors (1675).

285833 is a wasteful number, since it uses less digits than its factorization.

285833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674.

The product of its digits is 5760, while the sum is 29.

The square root of 285833 is about 534.6335193382. The cubic root of 285833 is about 65.8724964152.

The spelling of 285833 in words is "two hundred eighty-five thousand, eight hundred thirty-three".