609444321 has 16 divisors (see below), whose sum is σ = 824748480. Its totient is φ = 400252160.

The previous prime is 609444301. The next prime is 609444331. The reversal of 609444321 is 123444906.

It is a cyclic number.

It is not a de Polignac number, because 609444321 - 2¹⁸ = 609182177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609444301) 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 15 ways as a sum of consecutive naturals, for example, 70966 + ... + 79088.

It is an arithmetic number, because the mean of its divisors is an integer number (51546780).

Almost surely, 2^609444321 is an apocalyptic number.

It is an amenable number.

609444321 is a deficient number, since it is larger than the sum of its proper divisors (215304159).

609444321 is a wasteful number, since it uses less digits than its factorization.

609444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 609444321 is about 24686.9261148487. The cubic root of 609444321 is about 847.8350075234.

The spelling of 609444321 in words is "six hundred nine million, four hundred forty-four thousand, three hundred twenty-one".