3981368 has 8 divisors (see below), whose sum is σ = 7465080. Its totient is φ = 1990680.

The previous prime is 3981343. The next prime is 3981389. The reversal of 3981368 is 8631893.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248828 + ... + 248843.

It is an arithmetic number, because the mean of its divisors is an integer number (933135).

Almost surely, 2^3981368 is an apocalyptic number.

It is an amenable number.

3981368 is a deficient number, since it is larger than the sum of its proper divisors (3483712).

3981368 is a wasteful number, since it uses less digits than its factorization.

3981368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497677 (or 497673 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 3981368 is about 1995.3365630890. The cubic root of 3981368 is about 158.4932510469.

The spelling of 3981368 in words is "three million, nine hundred eighty-one thousand, three hundred sixty-eight".