3871422847 has 2 divisors, whose sum is σ = 3871422848. Its totient is φ = 3871422846.

The previous prime is 3871422839. The next prime is 3871422871. The reversal of 3871422847 is 7482241783.

It is a weak prime.

It is an emirp because it is prime and its reverse (7482241783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3871422847 - 2³ = 3871422839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3871422797 and 3871422806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3871422547) 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, 1935711423 + 1935711424.

It is an arithmetic number, because the mean of its divisors is an integer number (1935711424).

Almost surely, 2^3871422847 is an apocalyptic number.

3871422847 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871422847 is an equidigital number, since it uses as much as digits as its factorization.

3871422847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 46.

The square root of 3871422847 is about 62220.7589715844. The cubic root of 3871422847 is about 1570.2068569991.

The spelling of 3871422847 in words is "three billion, eight hundred seventy-one million, four hundred twenty-two thousand, eight hundred forty-seven".