603345649 has 2 divisors, whose sum is σ = 603345650. Its totient is φ = 603345648.

The previous prime is 603345607. The next prime is 603345661. The reversal of 603345649 is 946543306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332150625 + 271195024 = 18225^2 + 16468^2 .

It is a cyclic number.

It is not a de Polignac number, because 603345649 - 2⁹ = 603345137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (603345689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301672824 + 301672825.

It is an arithmetic number, because the mean of its divisors is an integer number (301672825).

Almost surely, 2^603345649 is an apocalyptic number.

It is an amenable number.

603345649 is a deficient number, since it is larger than the sum of its proper divisors (1).

603345649 is an equidigital number, since it uses as much as digits as its factorization.

603345649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 603345649 is about 24563.0952650516. The cubic root of 603345649 is about 844.9974435925.

The spelling of 603345649 in words is "six hundred three million, three hundred forty-five thousand, six hundred forty-nine".