3997208 has 16 divisors (see below), whose sum is σ = 7618560. Its totient is φ = 1965600.

The previous prime is 3997181. The next prime is 3997211. The reversal of 3997208 is 8027993.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3608 + ... + 4583.

It is an arithmetic number, because the mean of its divisors is an integer number (476160).

Almost surely, 2^3997208 is an apocalyptic number.

It is an amenable number.

3997208 is a deficient number, since it is larger than the sum of its proper divisors (3621352).

3997208 is a wasteful number, since it uses less digits than its factorization.

3997208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8258 (or 8254 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3997208 is about 1999.3018781565. The cubic root of 3997208 is about 158.7031630691.

The spelling of 3997208 in words is "three million, nine hundred ninety-seven thousand, two hundred eight".