3849839885 has 4 divisors (see below), whose sum is σ = 4619807868. Its totient is φ = 3079871904.

The previous prime is 3849839867. The next prime is 3849839897. The reversal of 3849839885 is 5889389483.

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

It can be written as a sum of positive squares in 2 ways, for example, as 621554761 + 3228285124 = 24931^2 + 56818^2 .

It is a cyclic number.

It is not a de Polignac number, because 3849839885 - 2⁸ = 3849839629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384983984 + ... + 384983993.

It is an arithmetic number, because the mean of its divisors is an integer number (1154951967).

Almost surely, 2^3849839885 is an apocalyptic number.

It is an amenable number.

3849839885 is a deficient number, since it is larger than the sum of its proper divisors (769967983).

3849839885 is an equidigital number, since it uses as much as digits as its factorization.

3849839885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769967982.

The product of its digits is 59719680, while the sum is 65.

The square root of 3849839885 is about 62047.0779731004. The cubic root of 3849839885 is about 1567.2834797470.

The spelling of 3849839885 in words is "three billion, eight hundred forty-nine million, eight hundred thirty-nine thousand, eight hundred eighty-five".