3956541 has 16 divisors (see below), whose sum is σ = 5691840. Its totient is φ = 2436480.

The previous prime is 3956509. The next prime is 3956543. The reversal of 3956541 is 1456593.

It is a happy number.

It is not a de Polignac number, because 3956541 - 2⁵ = 3956509 is a prime.

3956541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491 + ... + 3183.

It is an arithmetic number, because the mean of its divisors is an integer number (355740).

Almost surely, 2^3956541 is an apocalyptic number.

It is an amenable number.

3956541 is a deficient number, since it is larger than the sum of its proper divisors (1735299).

3956541 is a wasteful number, since it uses less digits than its factorization.

3956541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756.

The product of its digits is 16200, while the sum is 33.

The square root of 3956541 is about 1989.1055778917. The cubic root of 3956541 is about 158.1631200048.

The spelling of 3956541 in words is "three million, nine hundred fifty-six thousand, five hundred forty-one".