216208 has 10 divisors (see below), whose sum is σ = 418934. Its totient is φ = 108096.

The previous prime is 216179. The next prime is 216211. The reversal of 216208 is 802612.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 186624 + 29584 = 432^2 + 172^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6741 + ... + 6772.

2²¹⁶²⁰⁸ is an apocalyptic number.

It is an amenable number.

216208 is a deficient number, since it is larger than the sum of its proper divisors (202726).

216208 is a wasteful number, since it uses less digits than its factorization.

216208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13521 (or 13515 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 216208 is about 464.9817200708. The cubic root of 216208 is about 60.0192530806.

It can be divided in two parts, 216 and 208, that added together give a palindrome (424).

The spelling of 216208 in words is "two hundred sixteen thousand, two hundred eight".