283313 has 4 divisors (see below), whose sum is σ = 287268. Its totient is φ = 279360.

The previous prime is 283303. The next prime is 283369. The reversal of 283313 is 313382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313382 = 2 ⋅156691.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 113569 = 412^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 283313 - 2¹⁸ = 21169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (283303) 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, 1868 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (71817).

2²⁸³³¹³ is an apocalyptic number.

It is an amenable number.

283313 is a deficient number, since it is larger than the sum of its proper divisors (3955).

283313 is an equidigital number, since it uses as much as digits as its factorization.

283313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its digits is 432, while the sum is 20.

The square root of 283313 is about 532.2715472388. The cubic root of 283313 is about 65.6783400046.

Adding to 283313 its reverse (313382), we get a palindrome (596695).

The spelling of 283313 in words is "two hundred eighty-three thousand, three hundred thirteen".