3959910491 has 2 divisors, whose sum is σ = 3959910492. Its totient is φ = 3959910490.

The previous prime is 3959910467. The next prime is 3959910497. The reversal of 3959910491 is 1940199593.

It is a happy number.

3959910491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3959910491 is a prime.

It is a super-2 number, since 2×3959910491² = 31361782193463722162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3959910497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979955245 + 1979955246.

It is an arithmetic number, because the mean of its divisors is an integer number (1979955246).

Almost surely, 2^3959910491 is an apocalyptic number.

3959910491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959910491 is an equidigital number, since it uses as much as digits as its factorization.

3959910491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 393660, while the sum is 50.

The square root of 3959910491 is about 62927.8196904994. The cubic root of 3959910491 is about 1582.0800584457.

The spelling of 3959910491 in words is "three billion, nine hundred fifty-nine million, nine hundred ten thousand, four hundred ninety-one".