3879881399 has 2 divisors, whose sum is σ = 3879881400. Its totient is φ = 3879881398.

The previous prime is 3879881387. The next prime is 3879881459. The reversal of 3879881399 is 9931889783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3879881399 - 2⁸ = 3879881143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3879811399) by changing a digit.

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 as a sum of consecutive naturals, namely, 1939940699 + 1939940700.

It is an arithmetic number, because the mean of its divisors is an integer number (1939940700).

Almost surely, 2^3879881399 is an apocalyptic number.

3879881399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879881399 is an equidigital number, since it uses as much as digits as its factorization.

3879881399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 65.

The square root of 3879881399 is about 62288.6939901616. The cubic root of 3879881399 is about 1571.3495906220.

The spelling of 3879881399 in words is "three billion, eight hundred seventy-nine million, eight hundred eighty-one thousand, three hundred ninety-nine".