680506 has 16 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 325728.

The previous prime is 680503. The next prime is 680507. The reversal of 680506 is 605086.

It is a super-3 number, since 3×680506³ = 945403336928982648, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (680503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8575 + ... + 8653.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

2⁶⁸⁰⁵⁰⁶ is an apocalyptic number.

680506 is a deficient number, since it is larger than the sum of its proper divisors (385094).

680506 is a wasteful number, since it uses less digits than its factorization.

680506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 680506 is about 824.9278756352. The cubic root of 680506 is about 87.9583997589.

The spelling of 680506 in words is "six hundred eighty thousand, five hundred six".