4939 has 4 divisors (see below), whose sum is σ = 5400. Its totient is φ = 4480.

The previous prime is 4937. The next prime is 4943. The reversal of 4939 is 9394.

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 4939 - 2¹ = 4937 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (4931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214 + ... + 235.

It is an arithmetic number, because the mean of its divisors is an integer number (1350).

2⁴⁹³⁹ is an apocalyptic number.

4939 is a deficient number, since it is larger than the sum of its proper divisors (461).

4939 is a wasteful number, since it uses less digits than its factorization.

4939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 972, while the sum is 25.

The square root of 4939 is about 70.2780193233. The cubic root of 4939 is about 17.0299357205.

It can be divided in two parts, 49 and 39, that added together give a palindrome (88).

The spelling of 4939 in words is "four thousand, nine hundred thirty-nine".