564630643 has 2 divisors, whose sum is σ = 564630644. Its totient is φ = 564630642.

The previous prime is 564630629. The next prime is 564630659. The reversal of 564630643 is 346036465.

564630643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564630643 is a prime.

It is not a weakly prime, because it can be changed into another prime (564630623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282315321 + 282315322.

It is an arithmetic number, because the mean of its divisors is an integer number (282315322).

Almost surely, 2^564630643 is an apocalyptic number.

564630643 is a deficient number, since it is larger than the sum of its proper divisors (1).

564630643 is an equidigital number, since it uses as much as digits as its factorization.

564630643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 564630643 is about 23761.9578949210. The cubic root of 564630643 is about 826.5227550566.

The spelling of 564630643 in words is "five hundred sixty-four million, six hundred thirty thousand, six hundred forty-three".