680187 has 8 divisors (see below), whose sum is σ = 960336. Its totient is φ = 426752.

The previous prime is 680177. The next prime is 680189. The reversal of 680187 is 781086.

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

It is a cyclic number.

It is not a de Polignac number, because 680187 - 2⁶ = 680123 is a prime.

680187 is a modest number, since divided by 187 gives 68 as remainder.

It is not an unprimeable number, because it can be changed into a prime (680189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6618 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (120042).

2⁶⁸⁰¹⁸⁷ is an apocalyptic number.

680187 is a deficient number, since it is larger than the sum of its proper divisors (280149).

680187 is a wasteful number, since it uses less digits than its factorization.

680187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 680187 is about 824.7345027341. The cubic root of 680187 is about 87.9446535588.

The spelling of 680187 in words is "six hundred eighty thousand, one hundred eighty-seven".