683345 has 8 divisors (see below), whose sum is σ = 883176. Its totient is φ = 504576.

The previous prime is 683341. The next prime is 683351. The reversal of 683345 is 543386.

683345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 638401 = 212^2 + 799^2 .

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 683345 - 2² = 683341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683341) 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, 5192 + ... + 5321.

It is an arithmetic number, because the mean of its divisors is an integer number (110397).

2⁶⁸³³⁴⁵ is an apocalyptic number.

683345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

683345 is a deficient number, since it is larger than the sum of its proper divisors (199831).

683345 is a wasteful number, since it uses less digits than its factorization.

683345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10531.

The product of its digits is 8640, while the sum is 29.

The square root of 683345 is about 826.6468411601. The cubic root of 683345 is about 88.0805478073.

The spelling of 683345 in words is "six hundred eighty-three thousand, three hundred forty-five".