680590 has 8 divisors (see below), whose sum is σ = 1225080. Its totient is φ = 272232.

The previous prime is 680587. The next prime is 680597. The reversal of 680590 is 95086.

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 (680597) 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, 34020 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (153135).

2⁶⁸⁰⁵⁹⁰ is an apocalyptic number.

680590 is a deficient number, since it is larger than the sum of its proper divisors (544490).

680590 is a wasteful number, since it uses less digits than its factorization.

680590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68066.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 680590 is about 824.9787876061. The cubic root of 680590 is about 87.9620187334.

The spelling of 680590 in words is "six hundred eighty thousand, five hundred ninety".