3987116659 has 2 divisors, whose sum is σ = 3987116660. Its totient is φ = 3987116658.

The previous prime is 3987116611. The next prime is 3987116663. The reversal of 3987116659 is 9566117893.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3987116659 - 2⁷ = 3987116531 is a prime.

It is not a weakly prime, because it can be changed into another prime (3987116669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993558329 + 1993558330.

It is an arithmetic number, because the mean of its divisors is an integer number (1993558330).

Almost surely, 2^3987116659 is an apocalyptic number.

3987116659 is a deficient number, since it is larger than the sum of its proper divisors (1).

3987116659 is an equidigital number, since it uses as much as digits as its factorization.

3987116659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 55.

The square root of 3987116659 is about 63143.6193055165. The cubic root of 3987116659 is about 1585.6949665604.

The spelling of 3987116659 in words is "three billion, nine hundred eighty-seven million, one hundred sixteen thousand, six hundred fifty-nine".