609650439 has 8 divisors (see below), whose sum is σ = 813553392. Its totient is φ = 406090560.

The previous prime is 609650401. The next prime is 609650449. The reversal of 609650439 is 934056906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 609650439 - 2⁸ = 609650183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 609650439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609650449) 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 in 7 ways as a sum of consecutive naturals, for example, 81592 + ... + 88749.

It is an arithmetic number, because the mean of its divisors is an integer number (101694174).

Almost surely, 2^609650439 is an apocalyptic number.

609650439 is a deficient number, since it is larger than the sum of its proper divisors (203902953).

609650439 is a wasteful number, since it uses less digits than its factorization.

609650439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171537.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 609650439 is about 24691.1004007517. The cubic root of 609650439 is about 847.9305778393.

The spelling of 609650439 in words is "six hundred nine million, six hundred fifty thousand, four hundred thirty-nine".