4939999 has 4 divisors (see below), whose sum is σ = 4947064. Its totient is φ = 4932936.

The previous prime is 4939997. The next prime is 4940017. The reversal of 4939999 is 9999394.

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 4939999 - 2¹ = 4939997 is a prime.

It is a Duffinian number.

4939999 is a modest number, since divided by 9999 gives 493 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (1236766).

Almost surely, 2^4939999 is an apocalyptic number.

4939999 is a deficient number, since it is larger than the sum of its proper divisors (7065).

4939999 is an equidigital number, since it uses as much as digits as its factorization.

4939999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064.

The product of its digits is 708588, while the sum is 52.

The square root of 4939999 is about 2222.6108521286. The cubic root of 4939999 is about 170.3108384486.

The spelling of 4939999 in words is "four million, nine hundred thirty-nine thousand, nine hundred ninety-nine".