3965549 has 16 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 3240000.

The previous prime is 3965537. The next prime is 3965569. The reversal of 3965549 is 9455693.

3965549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3965549 - 2¹² = 3961453 is a prime.

It is a d-powerful number, because it can be written as 3¹⁰ + 9 + 6³ + 5⁹ + 5⁹ + 4² + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15674 + ... + 15924.

It is an arithmetic number, because the mean of its divisors is an integer number (296856).

Almost surely, 2^3965549 is an apocalyptic number.

It is an amenable number.

3965549 is a deficient number, since it is larger than the sum of its proper divisors (784147).

3965549 is a wasteful number, since it uses less digits than its factorization.

3965549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its digits is 145800, while the sum is 41.

The square root of 3965549 is about 1991.3686248407. The cubic root of 3965549 is about 158.2830609249.

The spelling of 3965549 in words is "three million, nine hundred sixty-five thousand, five hundred forty-nine".