680830 has 16 divisors (see below), whose sum is σ = 1239264. Its totient is φ = 269280.

The previous prime is 680809. The next prime is 680831. The reversal of 680830 is 38086.

It is a junction number, because it is equal to n+sod(n) for n = 680795 and 680804.

It is a congruent number.

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, 700 + ... + 1360.

It is an arithmetic number, because the mean of its divisors is an integer number (77454).

2⁶⁸⁰⁸³⁰ is an apocalyptic number.

680830 is a deficient number, since it is larger than the sum of its proper divisors (558434).

680830 is a wasteful number, since it uses less digits than its factorization.

680830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 680830 is about 825.1242330704. The cubic root of 680830 is about 87.9723570200.

The spelling of 680830 in words is "six hundred eighty thousand, eight hundred thirty".