3986481271 has 2 divisors, whose sum is σ = 3986481272. Its totient is φ = 3986481270.

The previous prime is 3986481263. The next prime is 3986481287. The reversal of 3986481271 is 1721846893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3986481271 - 2³ = 3986481263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986481221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993240635 + 1993240636.

It is an arithmetic number, because the mean of its divisors is an integer number (1993240636).

Almost surely, 2^3986481271 is an apocalyptic number.

3986481271 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986481271 is an equidigital number, since it uses as much as digits as its factorization.

3986481271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The square root of 3986481271 is about 63138.5878128423. The cubic root of 3986481271 is about 1585.6107298245.

The spelling of 3986481271 in words is "three billion, nine hundred eighty-six million, four hundred eighty-one thousand, two hundred seventy-one".