86660 has 24 divisors (see below), whose sum is σ = 208320. Its totient is φ = 29664.

The previous prime is 86629. The next prime is 86677. The reversal of 86660 is 6668.

It is a nialpdrome in base 10.

It is an unprimeable number.

86660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 449.

It is an arithmetic number, because the mean of its divisors is an integer number (8680).

2⁸⁶⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

86660 is an abundant number, since it is smaller than the sum of its proper divisors (121660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104160).

86660 is a wasteful number, since it uses less digits than its factorization.

86660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 86660 is about 294.3807058895. The cubic root of 86660 is about 44.2526783998.

Adding to 86660 its product of nonzero digits (1728), we get a palindrome (88388).

The spelling of 86660 in words is "eighty-six thousand, six hundred sixty".