4986 has 12 divisors (see below), whose sum is σ = 10842.
Its totient is φ = 1656.
The previous prime is 4973. The next prime is 4987. The reversal of 4986 is 6894.
It can be divided in two parts, 4 and 986, that added together give a triangular number (990 = T44).
4986 is nontrivially palindromic in base 5.
It can be written as a sum of positive squares in only one way, i.e., 4761 + 225 = 69^2 + 15^2
It is a Curzon number.
It is a plaindrome in base 13 and base 16.
It is not an unprimeable number, because it can be changed into a prime (4987) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121 + ... + 156.
24986 is an apocalyptic number.
4986 is an abundant number, since it is smaller than the sum of its proper divisors (5856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4986 is a wasteful number, since it uses less digits than its factorization.
4986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 285 (or 282 counting only the distinct ones).
The product of its digits is 1728, while the sum is 27.
The square root of 4986 is about 70.6116137756.
The cubic root of 4986 is about 17.0837847723.
The spelling of 4986 in words is "four thousand, nine hundred eighty-six".