573321009 has 4 divisors (see below), whose sum is σ = 764428016. Its totient is φ = 382214004.

The previous prime is 573320987. The next prime is 573321043. The reversal of 573321009 is 900123375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 573321009 - 2²⁰ = 572272433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573321059) 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 3 ways as a sum of consecutive naturals, for example, 95553499 + ... + 95553504.

It is an arithmetic number, because the mean of its divisors is an integer number (191107004).

Almost surely, 2^573321009 is an apocalyptic number.

It is an amenable number.

573321009 is a deficient number, since it is larger than the sum of its proper divisors (191107007).

573321009 is a wasteful number, since it uses less digits than its factorization.

573321009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191107006.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 573321009 is about 23944.1226400134. The cubic root of 573321009 is about 830.7415876572.

The spelling of 573321009 in words is "five hundred seventy-three million, three hundred twenty-one thousand, nine".