604649393 has 2 divisors, whose sum is σ = 604649394. Its totient is φ = 604649392.

The previous prime is 604649303. The next prime is 604649401. The reversal of 604649393 is 393946406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 598927729 + 5721664 = 24473^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 604649393 - 2⁸ = 604649137 is a prime.

It is not a weakly prime, because it can be changed into another prime (604649303) 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, 302324696 + 302324697.

It is an arithmetic number, because the mean of its divisors is an integer number (302324697).

Almost surely, 2^604649393 is an apocalyptic number.

It is an amenable number.

604649393 is a deficient number, since it is larger than the sum of its proper divisors (1).

604649393 is an equidigital number, since it uses as much as digits as its factorization.

604649393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 604649393 is about 24589.6196188554. The cubic root of 604649393 is about 845.6056454250.

The spelling of 604649393 in words is "six hundred four million, six hundred forty-nine thousand, three hundred ninety-three".