87065 has 8 divisors (see below), whose sum is σ = 114048. Its totient is φ = 63280.

The previous prime is 87049. The next prime is 87071. The reversal of 87065 is 56078.

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

It is not a de Polignac number, because 87065 - 2⁴ = 87049 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737 + ... + 846.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2⁸⁷⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

87065 is a deficient number, since it is larger than the sum of its proper divisors (26983).

87065 is a wasteful number, since it uses less digits than its factorization.

87065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 87065 is about 295.0677888215. The cubic root of 87065 is about 44.3215086459.

The spelling of 87065 in words is "eighty-seven thousand, sixty-five".