216083 has 4 divisors (see below), whose sum is σ = 246960. Its totient is φ = 185208.

The previous prime is 216071. The next prime is 216091. The reversal of 216083 is 380612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216083 - 2⁸ = 215827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216023) 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, 15428 + ... + 15441.

It is an arithmetic number, because the mean of its divisors is an integer number (61740).

216083 is a Friedman number, since it can be written as 82+60^3+1, using all its digits and the basic arithmetic operations.

2²¹⁶⁰⁸³ is an apocalyptic number.

216083 is a deficient number, since it is larger than the sum of its proper divisors (30877).

216083 is an equidigital number, since it uses as much as digits as its factorization.

216083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30876.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 216083 is about 464.8472867513. The cubic root of 216083 is about 60.0076842010.

Adding to 216083 its reverse (380612), we get a palindrome (596695).

The spelling of 216083 in words is "two hundred sixteen thousand, eighty-three".