88565 has 4 divisors (see below), whose sum is σ = 106284. Its totient is φ = 70848.

The previous prime is 88547. The next prime is 88589. The reversal of 88565 is 56588.

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 61009 + 27556 = 247^2 + 166^2 .

It is a cyclic number.

It is not a de Polignac number, because 88565 - 2¹⁰ = 87541 is a prime.

It is a Duffinian number.

It is a Curzon 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, 8852 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (26571).

2⁸⁸⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

88565 is a deficient number, since it is larger than the sum of its proper divisors (17719).

88565 is a wasteful number, since it uses less digits than its factorization.

88565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17718.

The product of its digits is 9600, while the sum is 32.

The square root of 88565 is about 297.5987231155. The cubic root of 88565 is about 44.5745918946.

The spelling of 88565 in words is "eighty-eight thousand, five hundred sixty-five".