3998084859 has 16 divisors (see below), whose sum is σ = 5953163040. Its totient is φ = 2651856480.

The previous prime is 3998084843. The next prime is 3998084873. The reversal of 3998084859 is 9584808993.

It is not a de Polignac number, because 3998084859 - 2⁴ = 3998084843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3998084796 and 3998084805.

It is not an unprimeable number, because it can be changed into a prime (3998084809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370512 + ... + 381149.

It is an arithmetic number, because the mean of its divisors is an integer number (372072690).

Almost surely, 2^3998084859 is an apocalyptic number.

3998084859 is a deficient number, since it is larger than the sum of its proper divisors (1955078181).

3998084859 is a wasteful number, since it uses less digits than its factorization.

3998084859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751867 (or 751861 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The square root of 3998084859 is about 63230.4108716684. The cubic root of 3998084859 is about 1587.1476701222.

The spelling of 3998084859 in words is "three billion, nine hundred ninety-eight million, eighty-four thousand, eight hundred fifty-nine".