3986050813 has 2 divisors, whose sum is σ = 3986050814. Its totient is φ = 3986050812.

The previous prime is 3986050799. The next prime is 3986050837. The reversal of 3986050813 is 3180506893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3216931524 + 769119289 = 56718^2 + 27733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3986050813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3986050813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986050883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993025406 + 1993025407.

It is an arithmetic number, because the mean of its divisors is an integer number (1993025407).

Almost surely, 2^3986050813 is an apocalyptic number.

It is an amenable number.

3986050813 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986050813 is an equidigital number, since it uses as much as digits as its factorization.

3986050813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3986050813 is about 63135.1788862596. The cubic root of 3986050813 is about 1585.5536566527.

The spelling of 3986050813 in words is "three billion, nine hundred eighty-six million, fifty thousand, eight hundred thirteen".