564420673 has 2 divisors, whose sum is σ = 564420674. Its totient is φ = 564420672.

The previous prime is 564420671. The next prime is 564420721. The reversal of 564420673 is 376024465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564157504 + 263169 = 23752^2 + 513^2 .

It is a cyclic number.

It is not a de Polignac number, because 564420673 - 2¹ = 564420671 is a prime.

It is a super-2 number, since 2×564420673² = 637141392219545858, which contains 22 as substring.

Together with 564420671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (564420671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282210336 + 282210337.

It is an arithmetic number, because the mean of its divisors is an integer number (282210337).

Almost surely, 2^564420673 is an apocalyptic number.

It is an amenable number.

564420673 is a deficient number, since it is larger than the sum of its proper divisors (1).

564420673 is an equidigital number, since it uses as much as digits as its factorization.

564420673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 564420673 is about 23757.5392875609. The cubic root of 564420673 is about 826.4202889568.

The spelling of 564420673 in words is "five hundred sixty-four million, four hundred twenty thousand, six hundred seventy-three".