565766873 has 4 divisors (see below), whose sum is σ = 646590720. Its totient is φ = 484943028.

The previous prime is 565766849. The next prime is 565766897. The reversal of 565766873 is 378667565.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (565766849) and next prime (565766897).

It is a cyclic number.

It is not a de Polignac number, because 565766873 - 2⁶ = 565766809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565766843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40411913 + ... + 40411926.

It is an arithmetic number, because the mean of its divisors is an integer number (161647680).

Almost surely, 2^565766873 is an apocalyptic number.

It is an amenable number.

565766873 is a deficient number, since it is larger than the sum of its proper divisors (80823847).

565766873 is an equidigital number, since it uses as much as digits as its factorization.

565766873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80823846.

The product of its digits is 6350400, while the sum is 53.

The square root of 565766873 is about 23785.8544727744. The cubic root of 565766873 is about 827.0767990860.

The spelling of 565766873 in words is "five hundred sixty-five million, seven hundred sixty-six thousand, eight hundred seventy-three".