680504 has 48 divisors (see below), whose sum is σ = 1516200. Its totient is φ = 285120.

The previous prime is 680503. The next prime is 680507. The reversal of 680504 is 405086.

It is a self number, because there is not a number n which added to its sum of digits gives 680504.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 18374 + ... + 18410.

2⁶⁸⁰⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758100).

680504 is an abundant number, since it is smaller than the sum of its proper divisors (835696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680504 is a wasteful number, since it uses less digits than its factorization.

680504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 680504 is about 824.9266634071. The cubic root of 680504 is about 87.9583135892.

The spelling of 680504 in words is "six hundred eighty thousand, five hundred four".