216716 has 12 divisors (see below), whose sum is σ = 401688. Its totient is φ = 101952.

The previous prime is 216703. The next prime is 216719. The reversal of 216716 is 617612.

216716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216691 and 216700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216719) by changing a digit.

216716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (33474).

2²¹⁶⁷¹⁶ is an apocalyptic number.

It is an amenable number.

216716 is a deficient number, since it is larger than the sum of its proper divisors (184972).

216716 is a wasteful number, since it uses less digits than its factorization.

216716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208 (or 3206 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 216716 is about 465.5276576102. The cubic root of 216716 is about 60.0662231776.

The spelling of 216716 in words is "two hundred sixteen thousand, seven hundred sixteen".