3544673729 has 4 divisors (see below), whose sum is σ = 3545155284. Its totient is φ = 3544192176.

The previous prime is 3544673707. The next prime is 3544673749. The reversal of 3544673729 is 9273764453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9273764453 = 23981 ⋅386713.

It can be written as a sum of positive squares in 2 ways, for example, as 3418156225 + 126517504 = 58465^2 + 11248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3544673729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3544673749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229562 + ... + 244515.

It is an arithmetic number, because the mean of its divisors is an integer number (886288821).

Almost surely, 2^3544673729 is an apocalyptic number.

It is an amenable number.

3544673729 is a deficient number, since it is larger than the sum of its proper divisors (481555).

3544673729 is an equidigital number, since it uses as much as digits as its factorization.

3544673729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481554.

The product of its digits is 3810240, while the sum is 50.

The square root of 3544673729 is about 59537.1625877485. The cubic root of 3544673729 is about 1524.7269928202.

The spelling of 3544673729 in words is "three billion, five hundred forty-four million, six hundred seventy-three thousand, seven hundred twenty-nine".