216327500 has 30 divisors (see below), whose sum is σ = 473070444. Its totient is φ = 86530000.

The previous prime is 216327497. The next prime is 216327577. The reversal of 216327500 is 5723612.

216327500 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 216327500.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40766 + ... + 45765.

Almost surely, 2^216327500 is an apocalyptic number.

216327500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216327500 is an abundant number, since it is smaller than the sum of its proper divisors (256742944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216327500 is an equidigital number, since it uses as much as digits as its factorization.

216327500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86555 (or 86538 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 216327500 is about 14708.0760128577. The cubic root of 216327500 is about 600.3030876115.

The spelling of 216327500 in words is "two hundred sixteen million, three hundred twenty-seven thousand, five hundred".