885565 has 4 divisors (see below), whose sum is σ = 1062684. Its totient is φ = 708448.

The previous prime is 885553. The next prime is 885589. The reversal of 885565 is 565588.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 509796 = 613^2 + 714^2 .

It is a cyclic number.

It is not a de Polignac number, because 885565 - 2¹¹ = 883517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 88552 + ... + 88561.

It is an arithmetic number, because the mean of its divisors is an integer number (265671).

2⁸⁸⁵⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

885565 is a deficient number, since it is larger than the sum of its proper divisors (177119).

885565 is a wasteful number, since it uses less digits than its factorization.

885565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177118.

The product of its digits is 48000, while the sum is 37.

The square root of 885565 is about 941.0446323103. The cubic root of 885565 is about 96.0299747255.

It can be divided in two parts, 8855 and 65, that multiplied together give a palindrome (575575).

The spelling of 885565 in words is "eight hundred eighty-five thousand, five hundred sixty-five".