216335 has 12 divisors (see below), whose sum is σ = 302328. Its totient is φ = 148176.

The previous prime is 216329. The next prime is 216347. The reversal of 216335 is 533612.

It is not a de Polignac number, because 216335 - 2⁴ = 216319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197 + ... + 686.

It is an arithmetic number, because the mean of its divisors is an integer number (25194).

2²¹⁶³³⁵ is an apocalyptic number.

216335 is a deficient number, since it is larger than the sum of its proper divisors (85993).

216335 is an equidigital number, since it uses as much as digits as its factorization.

216335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 895 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 216335 is about 465.1182645306. The cubic root of 216335 is about 60.0310024965.

Adding to 216335 its reverse (533612), we get a palindrome (749947).

The spelling of 216335 in words is "two hundred sixteen thousand, three hundred thirty-five".