3989311 has 2 divisors, whose sum is σ = 3989312. Its totient is φ = 3989310.

The previous prime is 3989287. The next prime is 3989317. The reversal of 3989311 is 1139893.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3989311 - 2¹³ = 3981119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3989317) 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, 1994655 + 1994656.

It is an arithmetic number, because the mean of its divisors is an integer number (1994656).

Almost surely, 2^3989311 is an apocalyptic number.

3989311 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989311 is an equidigital number, since it uses as much as digits as its factorization.

3989311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 34.

The square root of 3989311 is about 1997.3259623807. The cubic root of 3989311 is about 158.5985813108.

The spelling of 3989311 in words is "three million, nine hundred eighty-nine thousand, three hundred eleven".