680396 has 6 divisors (see below), whose sum is σ = 1190700. Its totient is φ = 340196.

The previous prime is 680387. The next prime is 680399. The reversal of 680396 is 693086.

It is a happy number.

680396 is a modest number, since divided by 396 gives 68 as remainder.

It is not an unprimeable number, because it can be changed into a prime (680399) by changing a digit.

680396 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 as a sum of consecutive naturals, namely, 85046 + ... + 85053.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

2⁶⁸⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

680396 is a deficient number, since it is larger than the sum of its proper divisors (510304).

680396 is a wasteful number, since it uses less digits than its factorization.

680396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170103 (or 170101 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 680396 is about 824.8612004453. The cubic root of 680396 is about 87.9536601752.

The spelling of 680396 in words is "six hundred eighty thousand, three hundred ninety-six".