680384 has 14 divisors (see below), whose sum is σ = 1350264. Its totient is φ = 340160.

The previous prime is 680377. The next prime is 680387. The reversal of 680384 is 483086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680387) by changing a digit.

680384 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 5252 + ... + 5379.

2⁶⁸⁰³⁸⁴ is an apocalyptic number.

680384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

680384 is a deficient number, since it is larger than the sum of its proper divisors (669880).

680384 is a wasteful number, since it uses less digits than its factorization.

680384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10643 (or 10633 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 680384 is about 824.8539264621. The cubic root of 680384 is about 87.9531430989.

The spelling of 680384 in words is "six hundred eighty thousand, three hundred eighty-four".