3906668 has 24 divisors (see below), whose sum is σ = 7347312. Its totient is φ = 1810944.

The previous prime is 3906667. The next prime is 3906691. The reversal of 3906668 is 8666093.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3906667) 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 7 ways as a sum of consecutive naturals, for example, 4571 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (306138).

Almost surely, 2^3906668 is an apocalyptic number.

It is an amenable number.

3906668 is a deficient number, since it is larger than the sum of its proper divisors (3440644).

3906668 is a wasteful number, since it uses less digits than its factorization.

3906668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3906668 is about 1976.5292813414. The cubic root of 3906668 is about 157.4957486045.

The spelling of 3906668 in words is "three million, nine hundred six thousand, six hundred sixty-eight".