605603 has 2 divisors, whose sum is σ = 605604. Its totient is φ = 605602.

The previous prime is 605599. The next prime is 605609. The reversal of 605603 is 306506.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 605603 - 2² = 605599 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (605609) 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, 302801 + 302802.

It is an arithmetic number, because the mean of its divisors is an integer number (302802).

2⁶⁰⁵⁶⁰³ is an apocalyptic number.

605603 is a deficient number, since it is larger than the sum of its proper divisors (1).

605603 is an equidigital number, since it uses as much as digits as its factorization.

605603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 605603 is about 778.2049858488. The cubic root of 605603 is about 84.6049953551.

The spelling of 605603 in words is "six hundred five thousand, six hundred three".