680796 has 18 divisors (see below), whose sum is σ = 1720992. Its totient is φ = 226920.

The previous prime is 680783. The next prime is 680803. The reversal of 680796 is 697086.

680796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18911 = 680796 / (6 + 8 + 0 + 7 + 9 + 6).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 680796.

It is a congruent number.

It is an unprimeable number.

680796 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 5 ways as a sum of consecutive naturals, for example, 9420 + ... + 9491.

2⁶⁸⁰⁷⁹⁶ is an apocalyptic number.

It is an amenable number.

680796 is an abundant number, since it is smaller than the sum of its proper divisors (1040196).

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

680796 is a wasteful number, since it uses less digits than its factorization.

680796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18921 (or 18916 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 680796 is about 825.1036298551. The cubic root of 680796 is about 87.9708925772.

Subtracting 680796 from its reverse (697086), we obtain a triangular number (16290 = T₁₈₀).

It can be divided in two parts, 6807 and 96, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 680796 in words is "six hundred eighty thousand, seven hundred ninety-six".