3931996 has 12 divisors (see below), whose sum is σ = 6998040. Its totient is φ = 1932560.

The previous prime is 3931969. The next prime is 3931997. The reversal of 3931996 is 6991393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8095 + ... + 8566.

It is an arithmetic number, because the mean of its divisors is an integer number (583170).

Almost surely, 2^3931996 is an apocalyptic number.

It is an amenable number.

3931996 is a deficient number, since it is larger than the sum of its proper divisors (3066044).

3931996 is a wasteful number, since it uses less digits than its factorization.

3931996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16724 (or 16722 counting only the distinct ones).

The product of its digits is 39366, while the sum is 40.

The square root of 3931996 is about 1982.9261206611. The cubic root of 3931996 is about 157.8353783973.

The spelling of 3931996 in words is "three million, nine hundred thirty-one thousand, nine hundred ninety-six".