680632 has 16 divisors (see below), whose sum is σ = 1287000. Its totient is φ = 337440.

The previous prime is 680623. The next prime is 680633. The reversal of 680632 is 236086.

It is a junction number, because it is equal to n+sod(n) for n = 680597 and 680606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907 + ... + 1477.

2⁶⁸⁰⁶³² is an apocalyptic number.

It is an amenable number.

680632 is a deficient number, since it is larger than the sum of its proper divisors (606368).

680632 is a wasteful number, since it uses less digits than its factorization.

680632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 680632 is about 825.0042424133. The cubic root of 680632 is about 87.9638281090.

The spelling of 680632 in words is "six hundred eighty thousand, six hundred thirty-two".