4493879839 has 4 divisors (see below), whose sum is σ = 4535878824. Its totient is φ = 4451880856.

The previous prime is 4493879749. The next prime is 4493879843. The reversal of 4493879839 is 9389783944.

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-4493879839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493879849) 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, 20999332 + ... + 20999545.

It is an arithmetic number, because the mean of its divisors is an integer number (1133969706).

Almost surely, 2^4493879839 is an apocalyptic number.

4493879839 is a deficient number, since it is larger than the sum of its proper divisors (41998985).

4493879839 is a wasteful number, since it uses less digits than its factorization.

4493879839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41998984.

The product of its digits is 47029248, while the sum is 64.

The square root of 4493879839 is about 67036.4068174899. The cubic root of 4493879839 is about 1650.2148283491.

The spelling of 4493879839 in words is "four billion, four hundred ninety-three million, eight hundred seventy-nine thousand, eight hundred thirty-nine".