683603 has 2 divisors, whose sum is σ = 683604. Its totient is φ = 683602.

The previous prime is 683597. The next prime is 683651. The reversal of 683603 is 306386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 683603 - 2¹⁸ = 421459 is a prime.

It is not a weakly prime, because it can be changed into another prime (683653) 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 as a sum of consecutive naturals, namely, 341801 + 341802.

It is an arithmetic number, because the mean of its divisors is an integer number (341802).

2⁶⁸³⁶⁰³ is an apocalyptic number.

683603 is a deficient number, since it is larger than the sum of its proper divisors (1).

683603 is an equidigital number, since it uses as much as digits as its factorization.

683603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 683603 is about 826.8028785630. The cubic root of 683603 is about 88.0916314824.

Adding to 683603 its reverse (306386), we get a palindrome (989989).

The spelling of 683603 in words is "six hundred eighty-three thousand, six hundred three".