3871541 has 4 divisors (see below), whose sum is σ = 3880800. Its totient is φ = 3862284.

The previous prime is 3871537. The next prime is 3871547. The reversal of 3871541 is 1451783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3871541 - 2² = 3871537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871547) 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, 3971 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^3871541 is an apocalyptic number.

It is an amenable number.

3871541 is a deficient number, since it is larger than the sum of its proper divisors (9259).

3871541 is an equidigital number, since it uses as much as digits as its factorization.

3871541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258.

The product of its digits is 3360, while the sum is 29.

The square root of 3871541 is about 1967.6231854702. The cubic root of 3871541 is about 157.0222830692.

The spelling of 3871541 in words is "three million, eight hundred seventy-one thousand, five hundred forty-one".