3988443 has 8 divisors (see below), whose sum is σ = 5397568. Its totient is φ = 2619144.

The previous prime is 3988441. The next prime is 3988451. The reversal of 3988443 is 3448893.

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

It is not a de Polignac number, because 3988443 - 2¹ = 3988441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3988441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9721 + ... + 10122.

It is an arithmetic number, because the mean of its divisors is an integer number (674696).

Almost surely, 2^3988443 is an apocalyptic number.

3988443 is a deficient number, since it is larger than the sum of its proper divisors (1409125).

3988443 is a wasteful number, since it uses less digits than its factorization.

3988443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19913.

The product of its digits is 82944, while the sum is 39.

The square root of 3988443 is about 1997.1086600383. The cubic root of 3988443 is about 158.5870777743.

The spelling of 3988443 in words is "three million, nine hundred eighty-eight thousand, four hundred forty-three".