616216 has 32 divisors (see below), whose sum is σ = 1283040. Its totient is φ = 275968.

The previous prime is 616211. The next prime is 616219. The reversal of 616216 is 612616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616211) by changing a digit.

616216 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 7 ways as a sum of consecutive naturals, for example, 3030 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (40095).

2⁶¹⁶²¹⁶ is an apocalyptic number.

It is an amenable number.

616216 is an abundant number, since it is smaller than the sum of its proper divisors (666824).

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

616216 is a wasteful number, since it uses less digits than its factorization.

616216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 239 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 616216 is about 784.9942674950. The cubic root of 616216 is about 85.0963613058.

Subtracting from 616216 its reverse (612616), we obtain a square (3600 = 60²).

The spelling of 616216 in words is "six hundred sixteen thousand, two hundred sixteen".