564706669 has 2 divisors, whose sum is σ = 564706670. Its totient is φ = 564706668.

The previous prime is 564706631. The next prime is 564706693. The reversal of 564706669 is 966607465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 512433769 + 52272900 = 22637^2 + 7230^2 .

It is a cyclic number.

It is not a de Polignac number, because 564706669 - 2¹⁷ = 564575597 is a prime.

It is a super-2 number, since 2×564706669² = 637787244026151122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564706699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282353334 + 282353335.

It is an arithmetic number, because the mean of its divisors is an integer number (282353335).

Almost surely, 2^564706669 is an apocalyptic number.

It is an amenable number.

564706669 is a deficient number, since it is larger than the sum of its proper divisors (1).

564706669 is an equidigital number, since it uses as much as digits as its factorization.

564706669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 564706669 is about 23763.5575829883. The cubic root of 564706669 is about 826.5598497483.

The spelling of 564706669 in words is "five hundred sixty-four million, seven hundred six thousand, six hundred sixty-nine".