283385 has 12 divisors (see below), whose sum is σ = 361188. Its totient is φ = 213408.

The previous prime is 283369. The next prime is 283397. The reversal of 283385 is 583382.

It can be written as a sum of positive squares in 2 ways, for example, as 92416 + 190969 = 304^2 + 437^2 .

It is not a de Polignac number, because 283385 - 2⁴ = 283369 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁴ + 3³ + 3⁶ + 8⁶ + 5 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1727 + ... + 1883.

It is an arithmetic number, because the mean of its divisors is an integer number (30099).

2²⁸³³⁸⁵ is an apocalyptic number.

It is an amenable number.

283385 is a deficient number, since it is larger than the sum of its proper divisors (77803).

283385 is a wasteful number, since it uses less digits than its factorization.

283385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 181 counting only the distinct ones).

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

The square root of 283385 is about 532.3391775926. The cubic root of 283385 is about 65.6839032744.

The spelling of 283385 in words is "two hundred eighty-three thousand, three hundred eighty-five".