680312 has 16 divisors (see below), whose sum is σ = 1284360. Its totient is φ = 337824.

The previous prime is 680299. The next prime is 680321. The reversal of 680312 is 213086.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680312.

It is an unprimeable number.

680312 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063 + ... + 2369.

2⁶⁸⁰³¹² is an apocalyptic number.

It is an amenable number.

680312 is a deficient number, since it is larger than the sum of its proper divisors (604048).

680312 is a wasteful number, since it uses less digits than its factorization.

680312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 680312 is about 824.8102812162. The cubic root of 680312 is about 87.9500405128.

Adding to 680312 its reverse (213086), we get a palindrome (893398).

The spelling of 680312 in words is "six hundred eighty thousand, three hundred twelve".