604430509 has 2 divisors, whose sum is σ = 604430510. Its totient is φ = 604430508.

The previous prime is 604430479. The next prime is 604430539. The reversal of 604430509 is 905034406.

It is a balanced prime because it is at equal distance from previous prime (604430479) and next prime (604430539).

It can be written as a sum of positive squares in only one way, i.e., 475676100 + 128754409 = 21810^2 + 11347^2 .

It is a cyclic number.

It is not a de Polignac number, because 604430509 - 2⁷ = 604430381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (604430539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302215254 + 302215255.

It is an arithmetic number, because the mean of its divisors is an integer number (302215255).

Almost surely, 2^604430509 is an apocalyptic number.

It is an amenable number.

604430509 is a deficient number, since it is larger than the sum of its proper divisors (1).

604430509 is an equidigital number, since it uses as much as digits as its factorization.

604430509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 604430509 is about 24585.1684761362. The cubic root of 604430509 is about 845.5035962667.

The spelling of 604430509 in words is "six hundred four million, four hundred thirty thousand, five hundred nine".