683709 has 16 divisors (see below), whose sum is σ = 1005312. Its totient is φ = 410688.

The previous prime is 683701. The next prime is 683713. The reversal of 683709 is 907386.

It is a happy number.

It is not a de Polignac number, because 683709 - 2³ = 683701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 683709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (62832).

2⁶⁸³⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

683709 is a deficient number, since it is larger than the sum of its proper divisors (321603).

683709 is a wasteful number, since it uses less digits than its factorization.

683709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 683709 is about 826.8669784191. The cubic root of 683709 is about 88.0961844322.

The spelling of 683709 in words is "six hundred eighty-three thousand, seven hundred nine".