680700 has 36 divisors (see below), whose sum is σ = 1970360. Its totient is φ = 181440.

The previous prime is 680681. The next prime is 680707. The reversal of 680700 is 7086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680707) by changing a digit.

680700 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 835 + ... + 1434.

2⁶⁸⁰⁷⁰⁰ is an apocalyptic number.

680700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680700 is an abundant number, since it is smaller than the sum of its proper divisors (1289660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680700 is a wasteful number, since it uses less digits than its factorization.

680700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 680700 is about 825.0454532933. The cubic root of 680700 is about 87.9667574164.

Adding to 680700 its reverse (7086), we get a palindrome (687786).

The spelling of 680700 in words is "six hundred eighty thousand, seven hundred".