683689 has 8 divisors (see below), whose sum is σ = 731808. Its totient is φ = 636480.

The previous prime is 683687. The next prime is 683693. The reversal of 683689 is 986386.

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

It is not a de Polignac number, because 683689 - 2¹ = 683687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2⁶⁸³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

683689 is a deficient number, since it is larger than the sum of its proper divisors (48119).

683689 is a wasteful number, since it uses less digits than its factorization.

683689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 62208, while the sum is 40.

The square root of 683689 is about 826.8548844870. The cubic root of 683689 is about 88.0953254211.

The spelling of 683689 in words is "six hundred eighty-three thousand, six hundred eighty-nine".