680446 has 8 divisors (see below), whose sum is σ = 1099224. Its totient is φ = 314040.

The previous prime is 680443. The next prime is 680453. The reversal of 680446 is 644086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680441) 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, 13060 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (137403).

2⁶⁸⁰⁴⁴⁶ is an apocalyptic number.

680446 is a deficient number, since it is larger than the sum of its proper divisors (418778).

680446 is a wasteful number, since it uses less digits than its factorization.

680446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26186.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 680446 is about 824.8915080179. The cubic root of 680446 is about 87.9558145948.

The spelling of 680446 in words is "six hundred eighty thousand, four hundred forty-six".