3871743 has 4 divisors (see below), whose sum is σ = 5162328. Its totient is φ = 2581160.

The previous prime is 3871691. The next prime is 3871759. The reversal of 3871743 is 3471783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3871743 - 2¹⁰ = 3870719 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645288 + ... + 645293.

It is an arithmetic number, because the mean of its divisors is an integer number (1290582).

Almost surely, 2^3871743 is an apocalyptic number.

3871743 is a deficient number, since it is larger than the sum of its proper divisors (1290585).

3871743 is a wasteful number, since it uses less digits than its factorization.

3871743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290584.

The product of its digits is 14112, while the sum is 33.

The square root of 3871743 is about 1967.6745157673. The cubic root of 3871743 is about 157.0250139327.

It can be divided in two parts, 387 and 1743, that multiplied together give a triangular number (674541 = T₁₁₆₁).

The spelling of 3871743 in words is "three million, eight hundred seventy-one thousand, seven hundred forty-three".