3944661 has 16 divisors (see below), whose sum is σ = 6273024. Its totient is φ = 2155824.

The previous prime is 3944627. The next prime is 3944669. The reversal of 3944661 is 1664493.

3944661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3944661 - 2⁶ = 3944597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3601 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (392064).

Almost surely, 2^3944661 is an apocalyptic number.

It is an amenable number.

3944661 is a deficient number, since it is larger than the sum of its proper divisors (2328363).

3944661 is a wasteful number, since it uses less digits than its factorization.

3944661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200.

The product of its digits is 15552, while the sum is 33.

The square root of 3944661 is about 1986.1170660361. The cubic root of 3944661 is about 158.0046599064.

The spelling of 3944661 in words is "three million, nine hundred forty-four thousand, six hundred sixty-one".