680956 has 6 divisors (see below), whose sum is σ = 1191680. Its totient is φ = 340476.

The previous prime is 680929. The next prime is 680959. The reversal of 680956 is 659086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85116 + ... + 85123.

2⁶⁸⁰⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

680956 is a deficient number, since it is larger than the sum of its proper divisors (510724).

680956 is a wasteful number, since it uses less digits than its factorization.

680956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170243 (or 170241 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 680956 is about 825.2005816770. The cubic root of 680956 is about 87.9777836480.

The spelling of 680956 in words is "six hundred eighty thousand, nine hundred fifty-six".