283648 has 22 divisors (see below), whose sum is σ = 569066. Its totient is φ = 141312.

The previous prime is 283639. The next prime is 283669. The reversal of 283648 is 846382.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 200704 + 82944 = 448^2 + 288^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886 + ... + 1162.

283648 is a Friedman number, since it can be written as 8864*32, using all its digits and the basic arithmetic operations.

2²⁸³⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284533).

283648 is an abundant number, since it is smaller than the sum of its proper divisors (285418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

283648 is an equidigital number, since it uses as much as digits as its factorization.

283648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 279 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 283648 is about 532.5861432670. The cubic root of 283648 is about 65.7042166587.

The spelling of 283648 in words is "two hundred eighty-three thousand, six hundred forty-eight".