680708 has 36 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 277200.

The previous prime is 680707. The next prime is 680749. The reversal of 680708 is 807086.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (680707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4433 + ... + 4583.

It is an arithmetic number, because the mean of its divisors is an integer number (40432).

2⁶⁸⁰⁷⁰⁸ 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 680708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727776).

680708 is an abundant number, since it is smaller than the sum of its proper divisors (774844).

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

680708 is a wasteful number, since it uses less digits than its factorization.

680708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 680708 is about 825.0503014968. The cubic root of 680708 is about 87.9671020280.

The spelling of 680708 in words is "six hundred eighty thousand, seven hundred eight".