680595 has 24 divisors (see below), whose sum is σ = 1164144. Its totient is φ = 339456.

The previous prime is 680587. The next prime is 680597. The reversal of 680595 is 595086.

It is not a de Polignac number, because 680595 - 2³ = 680587 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 4257 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (48506).

2⁶⁸⁰⁵⁹⁵ is an apocalyptic number.

680595 is a deficient number, since it is larger than the sum of its proper divisors (483549).

680595 is a wasteful number, since it uses less digits than its factorization.

680595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 680595 is about 824.9818179815. The cubic root of 680595 is about 87.9622341392.

It can be divided in two parts, 680 and 595, that added together give a triangular number (1275 = T₅₀).

The spelling of 680595 in words is "six hundred eighty thousand, five hundred ninety-five".