216810850 has 24 divisors (see below), whose sum is σ = 405513108. Its totient is φ = 86241600.

The previous prime is 216810833. The next prime is 216810871. The reversal of 216810850 is 58018612.

216810850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 45279441 + 171531409 = 6729^2 + 13097^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2929 + ... + 21028.

Almost surely, 2^216810850 is an apocalyptic number.

216810850 is a deficient number, since it is larger than the sum of its proper divisors (188702258).

216810850 is a wasteful number, since it uses less digits than its factorization.

216810850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24150 (or 24145 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 216810850 is about 14724.4982936601. The cubic root of 216810850 is about 600.7498495228.

The spelling of 216810850 in words is "two hundred sixteen million, eight hundred ten thousand, eight hundred fifty".