283668 has 48 divisors (see below), whose sum is σ = 827904. Its totient is φ = 73440.

The previous prime is 283639. The next prime is 283669. The reversal of 283668 is 866382.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283669) by changing a digit.

283668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771 + ... + 1077.

It is an arithmetic number, because the mean of its divisors is an integer number (17248).

2²⁸³⁶⁶⁸ is an apocalyptic number.

283668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413952).

283668 is an abundant number, since it is smaller than the sum of its proper divisors (544236).

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

283668 is a wasteful number, since it uses less digits than its factorization.

283668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 330 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 283668 is about 532.6049192413. The cubic root of 283668 is about 65.7057608889.

The spelling of 283668 in words is "two hundred eighty-three thousand, six hundred sixty-eight".