609239563 has 2 divisors, whose sum is σ = 609239564. Its totient is φ = 609239562.

The previous prime is 609239537. The next prime is 609239597. The reversal of 609239563 is 365932906.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609239563 - 2²⁹ = 72368651 is a prime.

It is not a weakly prime, because it can be changed into another prime (609239963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304619781 + 304619782.

It is an arithmetic number, because the mean of its divisors is an integer number (304619782).

Almost surely, 2^609239563 is an apocalyptic number.

609239563 is a deficient number, since it is larger than the sum of its proper divisors (1).

609239563 is an equidigital number, since it uses as much as digits as its factorization.

609239563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 43.

The square root of 609239563 is about 24682.7786725887. The cubic root of 609239563 is about 847.7400464581.

The spelling of 609239563 in words is "six hundred nine million, two hundred thirty-nine thousand, five hundred sixty-three".