616716 has 36 divisors (see below), whose sum is σ = 1604512. Its totient is φ = 199584.

The previous prime is 616703. The next prime is 616717. The reversal of 616716 is 617616.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 616716.

It is not an unprimeable number, because it can be changed into a prime (616717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1101 + ... + 1563.

2⁶¹⁶⁷¹⁶ 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 616716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802256).

616716 is an abundant number, since it is smaller than the sum of its proper divisors (987796).

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

616716 is a wasteful number, since it uses less digits than its factorization.

616716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 505 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 616716 is about 785.3126765818. The cubic root of 616716 is about 85.1193709203.

Subtracting 616716 from its reverse (617616), we obtain a square (900 = 30²).

The spelling of 616716 in words is "six hundred sixteen thousand, seven hundred sixteen".