3966208 has 18 divisors (see below), whose sum is σ = 7917434. Its totient is φ = 1982976.

The previous prime is 3966197. The next prime is 3966211. The reversal of 3966208 is 8026693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2408704 + 1557504 = 1552^2 + 1248^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7491 + ... + 8002.

Almost surely, 2^3966208 is an apocalyptic number.

It is an amenable number.

3966208 is a deficient number, since it is larger than the sum of its proper divisors (3951226).

3966208 is an equidigital number, since it uses as much as digits as its factorization.

3966208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15509 (or 15495 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 3966208 is about 1991.5340820584. The cubic root of 3966208 is about 158.2918283330.

The spelling of 3966208 in words is "three million, nine hundred sixty-six thousand, two hundred eight".