680128 has 14 divisors (see below), whose sum is σ = 1349756. Its totient is φ = 340032.

The previous prime is 680123. The next prime is 680129. The reversal of 680128 is 821086.

It is not an unprimeable number, because it can be changed into a prime (680123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250 + ... + 5377.

2⁶⁸⁰¹²⁸ is an apocalyptic number.

It is an amenable number.

680128 is a deficient number, since it is larger than the sum of its proper divisors (669628).

680128 is a wasteful number, since it uses less digits than its factorization.

680128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10639 (or 10629 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 680128 is about 824.6987328716. The cubic root of 680128 is about 87.9421106872.

It can be divided in two parts, 680 and 128, that added together give a palindrome (808).

The spelling of 680128 in words is "six hundred eighty thousand, one hundred twenty-eight".