3979443 has 24 divisors (see below), whose sum is σ = 5902848. Its totient is φ = 2382432.

The previous prime is 3979433. The next prime is 3979463. The reversal of 3979443 is 3449793.

It is not a de Polignac number, because 3979443 - 2⁴ = 3979427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (81648) is a multiple of the sum of its prime factors (243).

3979443 is a lucky number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3979433) 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 23 ways as a sum of consecutive naturals, for example, 23746 + ... + 23912.

It is an arithmetic number, because the mean of its divisors is an integer number (245952).

Almost surely, 2^3979443 is an apocalyptic number.

3979443 is a deficient number, since it is larger than the sum of its proper divisors (1923405).

3979443 is a wasteful number, since it uses less digits than its factorization.

3979443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 230 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 3979443 is about 1994.8541300055. The cubic root of 3979443 is about 158.4677029863.

The spelling of 3979443 in words is "three million, nine hundred seventy-nine thousand, four hundred forty-three".