3989042111 has 2 divisors, whose sum is σ = 3989042112. Its totient is φ = 3989042110.

The previous prime is 3989042107. The next prime is 3989042119. The reversal of 3989042111 is 1112409893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3989042111 - 2² = 3989042107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3989042119) 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 as a sum of consecutive naturals, namely, 1994521055 + 1994521056.

It is an arithmetic number, because the mean of its divisors is an integer number (1994521056).

Almost surely, 2^3989042111 is an apocalyptic number.

3989042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989042111 is an equidigital number, since it uses as much as digits as its factorization.

3989042111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 3989042111 is about 63158.8640730658. The cubic root of 3989042111 is about 1585.9501792415.

The spelling of 3989042111 in words is "three billion, nine hundred eighty-nine million, forty-two thousand, one hundred eleven".