It is a happy number.
It is a tau number, because it is divible by the number of its divisors (84).
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
213696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2213696 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 213696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213696 is a wasteful number, since it uses less digits than its factorization.
213696 is an evil number, because the sum of its binary digits is even.
The square root of 213696 is about 462.2726468222. The cubic root of 213696 is about 59.7859036210.
The spelling of 213696 in words is "two hundred thirteen thousand, six hundred ninety-six".