564441321 has 16 divisors (see below), whose sum is σ = 788852736. Its totient is φ = 358309776.

The previous prime is 564441313. The next prime is 564441343. The reversal of 564441321 is 123144465.

It is not a de Polignac number, because 564441321 - 2³ = 564441313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (564440321) 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, 2955 + ... + 33728.

It is an arithmetic number, because the mean of its divisors is an integer number (49303296).

Almost surely, 2^564441321 is an apocalyptic number.

It is an amenable number.

564441321 is a deficient number, since it is larger than the sum of its proper divisors (224411415).

564441321 is a wasteful number, since it uses less digits than its factorization.

564441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36932.

The product of its digits is 11520, while the sum is 30.

The square root of 564441321 is about 23757.9738403762. The cubic root of 564441321 is about 826.4303663801.

Adding to 564441321 its reverse (123144465), we get a palindrome (687585786).

The spelling of 564441321 in words is "five hundred sixty-four million, four hundred forty-one thousand, three hundred twenty-one".