3939543 has 16 divisors (see below), whose sum is σ = 5948640. Its totient is φ = 2575872.

The previous prime is 3939541. The next prime is 3939569. The reversal of 3939543 is 3459393.

It is a happy number.

It is not a de Polignac number, because 3939543 - 2¹ = 3939541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3939498 and 3939507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939541) 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 15 ways as a sum of consecutive naturals, for example, 55 + ... + 2807.

It is an arithmetic number, because the mean of its divisors is an integer number (371790).

Almost surely, 2^3939543 is an apocalyptic number.

3939543 is a deficient number, since it is larger than the sum of its proper divisors (2009097).

3939543 is a wasteful number, since it uses less digits than its factorization.

3939543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2809 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 3939543 is about 1984.8282041527. The cubic root of 3939543 is about 157.9362959551.

The spelling of 3939543 in words is "three million, nine hundred thirty-nine thousand, five hundred forty-three".