86611 has 4 divisors (see below), whose sum is σ = 98992. Its totient is φ = 74232.

The previous prime is 86599. The next prime is 86627. The reversal of 86611 is 11668.

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

It is a cyclic number.

It is not a de Polignac number, because 86611 - 2⁵ = 86579 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (86011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6180 + ... + 6193.

It is an arithmetic number, because the mean of its divisors is an integer number (24748).

2⁸⁶⁶¹¹ is an apocalyptic number.

86611 is a deficient number, since it is larger than the sum of its proper divisors (12381).

86611 is a wasteful number, since it uses less digits than its factorization.

86611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380.

The product of its digits is 288, while the sum is 22.

The square root of 86611 is about 294.2974685586. The cubic root of 86611 is about 44.2443362579.

The spelling of 86611 in words is "eighty-six thousand, six hundred eleven".