3996868 has 6 divisors (see below), whose sum is σ = 6994526. Its totient is φ = 1998432.

The previous prime is 3996857. The next prime is 3996869. The reversal of 3996868 is 8686993.

It can be written as a sum of positive squares in only one way, i.e., 3090564 + 906304 = 1758^2 + 952^2 .

It is not an unprimeable number, because it can be changed into a prime (3996869) 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 as a sum of consecutive naturals, namely, 499605 + ... + 499612.

Almost surely, 2^3996868 is an apocalyptic number.

It is an amenable number.

3996868 is a deficient number, since it is larger than the sum of its proper divisors (2997658).

3996868 is a wasteful number, since it uses less digits than its factorization.

3996868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999221 (or 999219 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 3996868 is about 1999.2168466677. The cubic root of 3996868 is about 158.6986632111.

The spelling of 3996868 in words is "three million, nine hundred ninety-six thousand, eight hundred sixty-eight".