283216 has 20 divisors (see below), whose sum is σ = 567424. Its totient is φ = 136800.

The previous prime is 283211. The next prime is 283267. The reversal of 283216 is 612382.

283216 is an admirable number.

It is a super-2 number, since 2×283216² = 160422605312, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2² + 8² + 2¹⁰ + 3⁷ + 1 + 6⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283211) 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, 211 + ... + 781.

2²⁸³²¹⁶ 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 283216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283712).

283216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

283216 is a wasteful number, since it uses less digits than its factorization.

283216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 604 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 283216 is about 532.1804205342. The cubic root of 283216 is about 65.6708435535.

Adding to 283216 its reverse (612382), we get a palindrome (895598).

The spelling of 283216 in words is "two hundred eighty-three thousand, two hundred sixteen".