680568 has 32 divisors (see below), whose sum is σ = 1944960. Its totient is φ = 194400.

The previous prime is 680567. The next prime is 680569. The reversal of 680568 is 865086.

It is an interprime number because it is at equal distance from previous prime (680567) and next prime (680569).

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680567) 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, 1858 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (60780).

2⁶⁸⁰⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

680568 is an abundant number, since it is smaller than the sum of its proper divisors (1264392).

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

680568 is a wasteful number, since it uses less digits than its factorization.

680568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 680568 is about 824.9654538222. The cubic root of 680568 is about 87.9610709355.

The spelling of 680568 in words is "six hundred eighty thousand, five hundred sixty-eight".