216838303 has 8 divisors (see below), whose sum is σ = 237134160. Its totient is φ = 196639680.

The previous prime is 216838301. The next prime is 216838309. The reversal of 216838303 is 303838612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216838303 - 2¹ = 216838301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216838301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19600 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (29641770).

Almost surely, 2^216838303 is an apocalyptic number.

216838303 is a deficient number, since it is larger than the sum of its proper divisors (20295857).

216838303 is a wasteful number, since it uses less digits than its factorization.

216838303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48617.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 216838303 is about 14725.4304860673. The cubic root of 216838303 is about 600.7752044802.

The spelling of 216838303 in words is "two hundred sixteen million, eight hundred thirty-eight thousand, three hundred three".