604306621 has 2 divisors, whose sum is σ = 604306622. Its totient is φ = 604306620.

The previous prime is 604306613. The next prime is 604306639. The reversal of 604306621 is 126603406.

604306621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335805625 + 268500996 = 18325^2 + 16386^2 .

It is a cyclic number.

It is not a de Polignac number, because 604306621 - 2³ = 604306613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 604306621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604306121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302153310 + 302153311.

It is an arithmetic number, because the mean of its divisors is an integer number (302153311).

Almost surely, 2^604306621 is an apocalyptic number.

It is an amenable number.

604306621 is a deficient number, since it is larger than the sum of its proper divisors (1).

604306621 is an equidigital number, since it uses as much as digits as its factorization.

604306621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 604306621 is about 24582.6487791694. The cubic root of 604306621 is about 845.4458256846.

The spelling of 604306621 in words is "six hundred four million, three hundred six thousand, six hundred twenty-one".