680875 has 16 divisors (see below), whose sum is σ = 917280. Its totient is φ = 501600.

The previous prime is 680873. The next prime is 680879. The reversal of 680875 is 578086.

It is not a de Polignac number, because 680875 - 2¹ = 680873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680875.

It is not an unprimeable number, because it can be changed into a prime (680873) 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 15 ways as a sum of consecutive naturals, for example, 1416 + ... + 1834.

It is an arithmetic number, because the mean of its divisors is an integer number (57330).

2⁶⁸⁰⁸⁷⁵ is an apocalyptic number.

680875 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

680875 is a deficient number, since it is larger than the sum of its proper divisors (236405).

680875 is a wasteful number, since it uses less digits than its factorization.

680875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 680875 is about 825.1515012408. The cubic root of 680875 is about 87.9742951783.

The spelling of 680875 in words is "six hundred eighty thousand, eight hundred seventy-five".