609578609 has 2 divisors, whose sum is σ = 609578610. Its totient is φ = 609578608.

The previous prime is 609578603. The next prime is 609578657. The reversal of 609578609 is 906875906.

609578609 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., 516880225 + 92698384 = 22735^2 + 9628^2 .

It is a cyclic number.

It is not a de Polignac number, because 609578609 - 2²⁴ = 592801393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (609578603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304789304 + 304789305.

It is an arithmetic number, because the mean of its divisors is an integer number (304789305).

Almost surely, 2^609578609 is an apocalyptic number.

It is an amenable number.

609578609 is a deficient number, since it is larger than the sum of its proper divisors (1).

609578609 is an equidigital number, since it uses as much as digits as its factorization.

609578609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 609578609 is about 24689.6457852275. The cubic root of 609578609 is about 847.8972750143.

The spelling of 609578609 in words is "six hundred nine million, five hundred seventy-eight thousand, six hundred nine".