680782 has 8 divisors (see below), whose sum is σ = 1081296. Its totient is φ = 320352.

The previous prime is 680767. The next prime is 680783. The reversal of 680782 is 287086.

680782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680783) by changing a digit.

680782 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, 9978 + ... + 10045.

It is an arithmetic number, because the mean of its divisors is an integer number (135162).

2⁶⁸⁰⁷⁸² is an apocalyptic number.

680782 is a deficient number, since it is larger than the sum of its proper divisors (400514).

680782 is a wasteful number, since it uses less digits than its factorization.

680782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20042.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 680782 is about 825.0951460286. The cubic root of 680782 is about 87.9702895571.

It can be divided in two parts, 6807 and 82, that added together give a square (6889 = 83²).

The spelling of 680782 in words is "six hundred eighty thousand, seven hundred eighty-two".