4995839 has 4 divisors (see below), whose sum is σ = 5077800. Its totient is φ = 4913880.

The previous prime is 4995827. The next prime is 4995863. The reversal of 4995839 is 9385994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4995839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4995793 and 4995802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4995889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40889 + ... + 41010.

It is an arithmetic number, because the mean of its divisors is an integer number (1269450).

Almost surely, 2^4995839 is an apocalyptic number.

4995839 is a deficient number, since it is larger than the sum of its proper divisors (81961).

4995839 is an equidigital number, since it uses as much as digits as its factorization.

4995839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81960.

The product of its digits is 349920, while the sum is 47.

The square root of 4995839 is about 2235.1373559582. The cubic root of 4995839 is about 170.9501467704.

The spelling of 4995839 in words is "four million, nine hundred ninety-five thousand, eight hundred thirty-nine".