3961668 has 12 divisors (see below), whose sum is σ = 9243920. Its totient is φ = 1320552.

The previous prime is 3961651. The next prime is 3961669. The reversal of 3961668 is 8661693.

It is a happy number.

3961668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3961669) 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 3 ways as a sum of consecutive naturals, for example, 165058 + ... + 165081.

Almost surely, 2^3961668 is an apocalyptic number.

It is an amenable number.

3961668 is an abundant number, since it is smaller than the sum of its proper divisors (5282252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3961668 is a wasteful number, since it uses less digits than its factorization.

3961668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330146 (or 330144 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 3961668 is about 1990.3939308589. The cubic root of 3961668 is about 158.2314079618.

The spelling of 3961668 in words is "three million, nine hundred sixty-one thousand, six hundred sixty-eight".