3871744 has 44 divisors (see below), whose sum is σ = 8188000. Its totient is φ = 1824768.

The previous prime is 3871691. The next prime is 3871759. The reversal of 3871744 is 4471783.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19357 + ... + 19555.

Almost surely, 2^3871744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3871744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4094000).

3871744 is an abundant number, since it is smaller than the sum of its proper divisors (4316256).

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

3871744 is a wasteful number, since it uses less digits than its factorization.

3871744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 220 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 3871744 is about 1967.6747698743. The cubic root of 3871744 is about 157.0250274516.

It can be divided in two parts, 38 and 71744, that multiplied together give a palindrome (2726272).

The spelling of 3871744 in words is "three million, eight hundred seventy-one thousand, seven hundred forty-four".