3998489576 has 16 divisors (see below), whose sum is σ = 7680026340. Its totient is φ = 1950482560.

The previous prime is 3998489557. The next prime is 3998489581. The reversal of 3998489576 is 6759848993.

It can be written as a sum of positive squares in 2 ways, for example, as 3978329476 + 20160100 = 63074^2 + 4490^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6094931 + ... + 6095586.

Almost surely, 2^3998489576 is an apocalyptic number.

It is an amenable number.

3998489576 is a deficient number, since it is larger than the sum of its proper divisors (3681536764).

3998489576 is a wasteful number, since it uses less digits than its factorization.

3998489576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190564 (or 12190560 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 68.

The square root of 3998489576 is about 63233.6111257296. The cubic root of 3998489576 is about 1587.2012227600.

The spelling of 3998489576 in words is "three billion, nine hundred ninety-eight million, four hundred eighty-nine thousand, five hundred seventy-six".