680599 has 8 divisors (see below), whose sum is σ = 725040. Its totient is φ = 637056.

The previous prime is 680597. The next prime is 680611. The reversal of 680599 is 995086.

680599 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 680599 - 2¹ = 680597 is a prime.

680599 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680597) 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, 1989 + ... + 2305.

It is an arithmetic number, because the mean of its divisors is an integer number (90630).

2⁶⁸⁰⁵⁹⁹ is an apocalyptic number.

680599 is a deficient number, since it is larger than the sum of its proper divisors (44441).

680599 is a wasteful number, since it uses less digits than its factorization.

680599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 680599 is about 824.9842422738. The cubic root of 680599 is about 87.9624064630.

The spelling of 680599 in words is "six hundred eighty thousand, five hundred ninety-nine".