283389 has 4 divisors (see below), whose sum is σ = 377856. Its totient is φ = 188924.

The previous prime is 283369. The next prime is 283397. The reversal of 283389 is 983382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 283389 - 2⁸ = 283133 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁴ + 8⁴ + 3³ + 3⁶ + 8⁶ + 9 .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47229 + ... + 47234.

It is an arithmetic number, because the mean of its divisors is an integer number (94464).

2²⁸³³⁸⁹ is an apocalyptic number.

It is an amenable number.

283389 is a deficient number, since it is larger than the sum of its proper divisors (94467).

283389 is an equidigital number, since it uses as much as digits as its factorization.

283389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94466.

The product of its digits is 10368, while the sum is 33.

The square root of 283389 is about 532.3429345826. The cubic root of 283389 is about 65.6842123173.

The spelling of 283389 in words is "two hundred eighty-three thousand, three hundred eighty-nine".