3873871 has 2 divisors, whose sum is σ = 3873872. Its totient is φ = 3873870.

The previous prime is 3873847. The next prime is 3873893. The reversal of 3873871 is 1783783.

It is a strong prime.

It is an emirp because it is prime and its reverse (1783783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3873871 - 2⁵ = 3873839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3873871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3873811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1936935 + 1936936.

It is an arithmetic number, because the mean of its divisors is an integer number (1936936).

Almost surely, 2^3873871 is an apocalyptic number.

3873871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3873871 is an equidigital number, since it uses as much as digits as its factorization.

3873871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 3873871 is about 1968.2151813255. The cubic root of 3873871 is about 157.0537768636.

It can be divided in two parts, 38738 and 71, that added together give a square (38809 = 197²).

The spelling of 3873871 in words is "three million, eight hundred seventy-three thousand, eight hundred seventy-one".