84986 has 8 divisors (see below), whose sum is σ = 139104.
Its totient is φ = 38620.
The previous prime is 84979. The next prime is 84991. The reversal of 84986 is 68948.
It can be divided in two parts, 8 and 4986, that added together give a palindrome (4994).
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 1910 + ... + 1953.
It is an arithmetic number, because the mean of its divisors is an integer number (17388).
284986 is an apocalyptic number.
84986 is a deficient number, since it is larger than the sum of its proper divisors (54118).
84986 is a wasteful number, since it uses less digits than its factorization.
84986 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3876.
The product of its digits is 13824, while the sum is 35.
The square root of 84986 is about 291.5235839516.
The cubic root of 84986 is about 43.9658826433.
The spelling of 84986 in words is "eighty-four thousand, nine hundred eighty-six".