565476869 has 2 divisors, whose sum is σ = 565476870. Its totient is φ = 565476868.

The previous prime is 565476839. The next prime is 565476871. The reversal of 565476869 is 968674565.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357021025 + 208455844 = 18895^2 + 14438^2 .

It is a cyclic number.

It is not a de Polignac number, because 565476869 - 2¹² = 565472773 is a prime.

It is a super-2 number, since 2×565476869² = 639528178748086322, which contains 22 as substring.

Together with 565476871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565476839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282738434 + 282738435.

It is an arithmetic number, because the mean of its divisors is an integer number (282738435).

Almost surely, 2^565476869 is an apocalyptic number.

It is an amenable number.

565476869 is a deficient number, since it is larger than the sum of its proper divisors (1).

565476869 is an equidigital number, since it uses as much as digits as its factorization.

565476869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The square root of 565476869 is about 23779.7575471240. The cubic root of 565476869 is about 826.9354590245.

The spelling of 565476869 in words is "five hundred sixty-five million, four hundred seventy-six thousand, eight hundred sixty-nine".