3989398941 has 24 divisors (see below), whose sum is σ = 6456232224. Its totient is φ = 2352468960.

The previous prime is 3989398939. The next prime is 3989398951. The reversal of 3989398941 is 1498939893.

It is a happy number.

It is not a de Polignac number, because 3989398941 - 2¹ = 3989398939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989398951) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 540891 + ... + 548216.

It is an arithmetic number, because the mean of its divisors is an integer number (269009676).

Almost surely, 2^3989398941 is an apocalyptic number.

It is an amenable number.

3989398941 is a deficient number, since it is larger than the sum of its proper divisors (2466833283).

3989398941 is a wasteful number, since it uses less digits than its factorization.

3989398941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089161 (or 1089158 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 3989398941 is about 63161.6888707071. The cubic root of 3989398941 is about 1585.9974669289.

The spelling of 3989398941 in words is "three billion, nine hundred eighty-nine million, three hundred ninety-eight thousand, nine hundred forty-one".