283285 has 8 divisors (see below), whose sum is σ = 346680. Its totient is φ = 222144.

The previous prime is 283277. The next prime is 283289. The reversal of 283285 is 582382.

It can be written as a sum of positive squares in 4 ways, for example, as 47089 + 236196 = 217^2 + 486^2 .

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 283285 - 2³ = 283277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283289) 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, 270 + ... + 799.

It is an arithmetic number, because the mean of its divisors is an integer number (43335).

2²⁸³²⁸⁵ is an apocalyptic number.

It is an amenable number.

283285 is a deficient number, since it is larger than the sum of its proper divisors (63395).

283285 is a wasteful number, since it uses less digits than its factorization.

283285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127.

The product of its digits is 3840, while the sum is 28.

The square root of 283285 is about 532.2452442249. The cubic root of 283285 is about 65.6761762563.

The spelling of 283285 in words is "two hundred eighty-three thousand, two hundred eighty-five".