9886 has 4 divisors (see below), whose sum is σ = 14832.
Its totient is φ = 4942.
The previous prime is 9883. The next prime is 9887. The reversal of 9886 is 6889.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6889 = 832.
9886 is a strobogrammatic number because it is the same when read upside-down.
It is a plaindrome in base 13 and base 16.
It is a nialpdrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9883) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2470 + ... + 2473.
It is an arithmetic number, because the mean of its divisors is an integer number (3708).
29886 is an apocalyptic number.
9886 is a deficient number, since it is larger than the sum of its proper divisors (4946).
9886 is a wasteful number, since it uses less digits than its factorization.
9886 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4945.
The product of its digits is 3456, while the sum is 31.
The square root of 9886 is about 99.4283661738.
The cubic root of 9886 is about 21.4621652963.
The spelling of 9886 in words is "nine thousand, eight hundred eighty-six".