3544639 has 8 divisors (see below), whose sum is σ = 4081280. Its totient is φ = 3015576.

The previous prime is 3544591. The next prime is 3544643. The reversal of 3544639 is 9364453.

It is a happy number.

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 3544639 - 2¹⁷ = 3413567 is a prime.

3544639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3544669) 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, 849 + ... + 2794.

It is an arithmetic number, because the mean of its divisors is an integer number (510160).

Almost surely, 2^3544639 is an apocalyptic number.

3544639 is a deficient number, since it is larger than the sum of its proper divisors (536641).

3544639 is a wasteful number, since it uses less digits than its factorization.

3544639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789.

The product of its digits is 38880, while the sum is 34.

The square root of 3544639 is about 1882.7211689467. The cubic root of 3544639 is about 152.4722013291.

The spelling of 3544639 in words is "three million, five hundred forty-four thousand, six hundred thirty-nine".