3989490611 has 2 divisors, whose sum is σ = 3989490612. Its totient is φ = 3989490610.

The previous prime is 3989490601. The next prime is 3989490641. The reversal of 3989490611 is 1160949893.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3989490611 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3989490611.

It is not a weakly prime, because it can be changed into another prime (3989490601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994745305 + 1994745306.

It is an arithmetic number, because the mean of its divisors is an integer number (1994745306).

Almost surely, 2^3989490611 is an apocalyptic number.

3989490611 is a deficient number, since it is larger than the sum of its proper divisors (1).

3989490611 is an equidigital number, since it uses as much as digits as its factorization.

3989490611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 3989490611 is about 63162.4145437775. The cubic root of 3989490611 is about 1586.0096147300.

The spelling of 3989490611 in words is "three billion, nine hundred eighty-nine million, four hundred ninety thousand, six hundred eleven".