680717716 has 48 divisors (see below), whose sum is σ = 1408540672. Its totient is φ = 281685600.

The previous prime is 680717707. The next prime is 680717717. The reversal of 680717716 is 617717086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680717717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703465 + ... + 704431.

Almost surely, 2^680717716 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 680717716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704270336).

680717716 is an abundant number, since it is smaller than the sum of its proper divisors (727822956).

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

680717716 is a wasteful number, since it uses less digits than its factorization.

680717716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 680717716 is about 26090.5675676096. The cubic root of 680717716 is about 879.6752055513.

The spelling of 680717716 in words is "six hundred eighty million, seven hundred seventeen thousand, seven hundred sixteen".