216700 has 36 divisors (see below), whose sum is σ = 515592. Its totient is φ = 78400.

The previous prime is 216679. The next prime is 216703. The reversal of 216700 is 7612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216703) by changing a digit.

216700 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1002 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (14322).

2²¹⁶⁷⁰⁰ is an apocalyptic number.

216700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257796).

216700 is an abundant number, since it is smaller than the sum of its proper divisors (298892).

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

216700 is a wasteful number, since it uses less digits than its factorization.

216700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 216700 is about 465.5104724923. The cubic root of 216700 is about 60.0647449246.

The spelling of 216700 in words is "two hundred sixteen thousand, seven hundred".