606655603 has 2 divisors, whose sum is σ = 606655604. Its totient is φ = 606655602.

The previous prime is 606655601. The next prime is 606655627. The reversal of 606655603 is 306556606.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 606655603 - 2¹ = 606655601 is a prime.

Together with 606655601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (606655601) 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 as a sum of consecutive naturals, namely, 303327801 + 303327802.

It is an arithmetic number, because the mean of its divisors is an integer number (303327802).

Almost surely, 2^606655603 is an apocalyptic number.

606655603 is a deficient number, since it is larger than the sum of its proper divisors (1).

606655603 is an equidigital number, since it uses as much as digits as its factorization.

606655603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 606655603 is about 24630.3796763266. The cubic root of 606655603 is about 846.5398450347.

The spelling of 606655603 in words is "six hundred six million, six hundred fifty-five thousand, six hundred three".