680935 has 8 divisors (see below), whose sum is σ = 865296. Its totient is φ = 512640.

The previous prime is 680929. The next prime is 680959. The reversal of 680935 is 539086.

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

It is not a de Polignac number, because 680935 - 2¹³ = 672743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680897 and 680906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3921 + ... + 4090.

It is an arithmetic number, because the mean of its divisors is an integer number (108162).

2⁶⁸⁰⁹³⁵ is an apocalyptic number.

680935 is a deficient number, since it is larger than the sum of its proper divisors (184361).

680935 is a wasteful number, since it uses less digits than its factorization.

680935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 680935 is about 825.1878573998. The cubic root of 680935 is about 87.9768792565.

The spelling of 680935 in words is "six hundred eighty thousand, nine hundred thirty-five".