3983891 has 8 divisors (see below), whose sum is σ = 4070400. Its totient is φ = 3898440.

The previous prime is 3983873. The next prime is 3983893. The reversal of 3983891 is 1983893.

3983891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3983891 - 2¹⁴ = 3967507 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3983893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16550 + ... + 16788.

It is an arithmetic number, because the mean of its divisors is an integer number (508800).

Almost surely, 2^3983891 is an apocalyptic number.

3983891 is a deficient number, since it is larger than the sum of its proper divisors (86509).

3983891 is a wasteful number, since it uses less digits than its factorization.

3983891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529.

The product of its digits is 46656, while the sum is 41.

The square root of 3983891 is about 1995.9686871291. The cubic root of 3983891 is about 158.5267231294.

The spelling of 3983891 in words is "three million, nine hundred eighty-three thousand, eight hundred ninety-one".