3949549 has 8 divisors (see below), whose sum is σ = 4202240. Its totient is φ = 3701376.

The previous prime is 3949541. The next prime is 3949579. The reversal of 3949549 is 9459493.

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

It is a cyclic number.

It is not a de Polignac number, because 3949549 - 2³ = 3949541 is a prime.

It is a Duffinian number.

3949549 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949541) 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, 772 + ... + 2914.

It is an arithmetic number, because the mean of its divisors is an integer number (525280).

Almost surely, 2^3949549 is an apocalyptic number.

It is an amenable number.

3949549 is a deficient number, since it is larger than the sum of its proper divisors (252691).

3949549 is a wasteful number, since it uses less digits than its factorization.

3949549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259.

The product of its digits is 174960, while the sum is 43.

The square root of 3949549 is about 1987.3472268328. The cubic root of 3949549 is about 158.0698964365.

The spelling of 3949549 in words is "three million, nine hundred forty-nine thousand, five hundred forty-nine".