3871422 has 16 divisors (see below), whose sum is σ = 8603280. Its totient is φ = 1290456.

The previous prime is 3871397. The next prime is 3871423. The reversal of 3871422 is 2241783.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871423) 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 in 7 ways as a sum of consecutive naturals, for example, 35793 + ... + 35900.

It is an arithmetic number, because the mean of its divisors is an integer number (537705).

Almost surely, 2^3871422 is an apocalyptic number.

3871422 is an abundant number, since it is smaller than the sum of its proper divisors (4731858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3871422 is a wasteful number, since it uses less digits than its factorization.

3871422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71704 (or 71698 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 3871422 is about 1967.5929457080. The cubic root of 3871422 is about 157.0206742488.

The spelling of 3871422 in words is "three million, eight hundred seventy-one thousand, four hundred twenty-two".