216875198 has 4 divisors (see below), whose sum is σ = 325312800. Its totient is φ = 108437598.

The previous prime is 216875159. The next prime is 216875213. The reversal of 216875198 is 891578612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54218798 + ... + 54218801.

It is an arithmetic number, because the mean of its divisors is an integer number (81328200).

Almost surely, 2^216875198 is an apocalyptic number.

216875198 is a deficient number, since it is larger than the sum of its proper divisors (108437602).

216875198 is a wasteful number, since it uses less digits than its factorization.

216875198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108437601.

The product of its digits is 241920, while the sum is 47.

The square root of 216875198 is about 14726.6831975160. The cubic root of 216875198 is about 600.8092764804.

The spelling of 216875198 in words is "two hundred sixteen million, eight hundred seventy-five thousand, one hundred ninety-eight".