565887 has 8 divisors (see below), whose sum is σ = 862336. Its totient is φ = 323352.

The previous prime is 565867. The next prime is 565889. The reversal of 565887 is 788565.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 565887 - 2¹⁴ = 549503 is a prime.

It is a Duffinian number.

565887 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565887.

It is not an unprimeable number, because it can be changed into a prime (565889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13453 + ... + 13494.

It is an arithmetic number, because the mean of its divisors is an integer number (107792).

2⁵⁶⁵⁸⁸⁷ is an apocalyptic number.

565887 is a deficient number, since it is larger than the sum of its proper divisors (296449).

565887 is a wasteful number, since it uses less digits than its factorization.

565887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26957.

The product of its digits is 67200, while the sum is 39.

The square root of 565887 is about 752.2546111524. The cubic root of 565887 is about 82.7135331571.

The spelling of 565887 in words is "five hundred sixty-five thousand, eight hundred eighty-seven".