680834 has 16 divisors (see below), whose sum is σ = 1273536. Its totient is φ = 265200.

The previous prime is 680831. The next prime is 680857. The reversal of 680834 is 438086.

It is a junction number, because it is equal to n+sod(n) for n = 680797 and 680806.

It is not an unprimeable number, because it can be changed into a prime (680831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057 + ... + 2364.

It is an arithmetic number, because the mean of its divisors is an integer number (79596).

2⁶⁸⁰⁸³⁴ is an apocalyptic number.

680834 is a deficient number, since it is larger than the sum of its proper divisors (592702).

680834 is a wasteful number, since it uses less digits than its factorization.

680834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

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

The square root of 680834 is about 825.1266569443. The cubic root of 680834 is about 87.9725293042.

The spelling of 680834 in words is "six hundred eighty thousand, eight hundred thirty-four".