3997936 has 10 divisors (see below), whose sum is σ = 7746032. Its totient is φ = 1998960.

The previous prime is 3997933. The next prime is 3997963. The reversal of 3997936 is 6397993.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124920 + ... + 124951.

Almost surely, 2^3997936 is an apocalyptic number.

It is an amenable number.

3997936 is a deficient number, since it is larger than the sum of its proper divisors (3748096).

3997936 is a wasteful number, since it uses less digits than its factorization.

3997936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249879 (or 249873 counting only the distinct ones).

The product of its digits is 275562, while the sum is 46.

The square root of 3997936 is about 1999.4839334188. The cubic root of 3997936 is about 158.7127972012.

The spelling of 3997936 in words is "three million, nine hundred ninety-seven thousand, nine hundred thirty-six".