3971443 has 8 divisors (see below), whose sum is σ = 4563200. Its totient is φ = 3385800.

The previous prime is 3971431. The next prime is 3971459. The reversal of 3971443 is 3441793.

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 3971443 - 2⁵ = 3971411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3971413) 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 in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 2818.

It is an arithmetic number, because the mean of its divisors is an integer number (570400).

Almost surely, 2^3971443 is an apocalyptic number.

3971443 is a deficient number, since it is larger than the sum of its proper divisors (591757).

3971443 is a wasteful number, since it uses less digits than its factorization.

3971443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057.

The product of its digits is 9072, while the sum is 31.

The square root of 3971443 is about 1992.8479620884. The cubic root of 3971443 is about 158.3614408703.

The spelling of 3971443 in words is "three million, nine hundred seventy-one thousand, four hundred forty-three".