3939549 has 8 divisors (see below), whose sum is σ = 5263392. Its totient is φ = 2621040.

The previous prime is 3939541. The next prime is 3939569. The reversal of 3939549 is 9459393.

It is a happy number.

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

It is not a de Polignac number, because 3939549 - 2³ = 3939541 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3939549.

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 7 ways as a sum of consecutive naturals, for example, 954 + ... + 2964.

It is an arithmetic number, because the mean of its divisors is an integer number (657924).

Almost surely, 2^3939549 is an apocalyptic number.

It is an amenable number.

3939549 is a deficient number, since it is larger than the sum of its proper divisors (1323843).

3939549 is a wasteful number, since it uses less digits than its factorization.

3939549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667.

The product of its digits is 131220, while the sum is 42.

The square root of 3939549 is about 1984.8297156179. The cubic root of 3939549 is about 157.9363761351.

The spelling of 3939549 in words is "three million, nine hundred thirty-nine thousand, five hundred forty-nine".