89065 has 8 divisors (see below), whose sum is σ = 109440. Its totient is φ = 69552.

The previous prime is 89057. The next prime is 89069. The reversal of 89065 is 56098.

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

It is a cyclic number.

It is not a de Polignac number, because 89065 - 2³ = 89057 is a prime.

89065 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (89069) 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, 46 + ... + 424.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2⁸⁹⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

89065 is a deficient number, since it is larger than the sum of its proper divisors (20375).

89065 is a wasteful number, since it uses less digits than its factorization.

89065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 89065 is about 298.4375981675. The cubic root of 89065 is about 44.6583175405.

It can be divided in two parts, 8906 and 5, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 89065 in words is "eighty-nine thousand, sixty-five".