3872541 has 4 divisors (see below), whose sum is σ = 5163392. Its totient is φ = 2581692.

The previous prime is 3872527. The next prime is 3872543. The reversal of 3872541 is 1452783.

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 not a de Polignac number, because 3872541 - 2¹³ = 3864349 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3872499 and 3872508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872543) 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 3 ways as a sum of consecutive naturals, for example, 645421 + ... + 645426.

It is an arithmetic number, because the mean of its divisors is an integer number (1290848).

Almost surely, 2^3872541 is an apocalyptic number.

It is an amenable number.

3872541 is a deficient number, since it is larger than the sum of its proper divisors (1290851).

3872541 is a wasteful number, since it uses less digits than its factorization.

3872541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290850.

The product of its digits is 6720, while the sum is 30.

The square root of 3872541 is about 1967.8772827593. The cubic root of 3872541 is about 157.0358012666.

The spelling of 3872541 in words is "three million, eight hundred seventy-two thousand, five hundred forty-one".