3982019389 has 2 divisors, whose sum is σ = 3982019390. Its totient is φ = 3982019388.

The previous prime is 3982019387. The next prime is 3982019401. The reversal of 3982019389 is 9839102893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2650499289 + 1331520100 = 51483^2 + 36490^2 .

It is a cyclic number.

It is not a de Polignac number, because 3982019389 - 2¹ = 3982019387 is a prime.

Together with 3982019387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3982019381) 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 as a sum of consecutive naturals, namely, 1991009694 + 1991009695.

It is an arithmetic number, because the mean of its divisors is an integer number (1991009695).

Almost surely, 2^3982019389 is an apocalyptic number.

It is an amenable number.

3982019389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3982019389 is an equidigital number, since it uses as much as digits as its factorization.

3982019389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 3982019389 is about 63103.2438865071. The cubic root of 3982019389 is about 1585.0189423444.

The spelling of 3982019389 in words is "three billion, nine hundred eighty-two million, nineteen thousand, three hundred eighty-nine".