216984203 has 2 divisors, whose sum is σ = 216984204. Its totient is φ = 216984202.

The previous prime is 216984197. The next prime is 216984211. The reversal of 216984203 is 302489612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216984203 - 2¹⁸ = 216722059 is a prime.

It is not a weakly prime, because it can be changed into another prime (216984233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108492101 + 108492102.

It is an arithmetic number, because the mean of its divisors is an integer number (108492102).

Almost surely, 2^216984203 is an apocalyptic number.

216984203 is a deficient number, since it is larger than the sum of its proper divisors (1).

216984203 is an equidigital number, since it uses as much as digits as its factorization.

216984203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 216984203 is about 14730.3836677800. The cubic root of 216984203 is about 600.9099184572.

The spelling of 216984203 in words is "two hundred sixteen million, nine hundred eighty-four thousand, two hundred three".