3427171729 has 4 divisors (see below), whose sum is σ = 3628770084. Its totient is φ = 3225573376.

The previous prime is 3427171717. The next prime is 3427171753. The reversal of 3427171729 is 9271717243.

It is a happy number.

3427171729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1197160000 + 2230011729 = 34600^2 + 47223^2 .

It is a cyclic number.

It is not a de Polignac number, because 3427171729 - 2²⁹ = 2890300817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3427171229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100799152 + ... + 100799185.

It is an arithmetic number, because the mean of its divisors is an integer number (907192521).

Almost surely, 2^3427171729 is an apocalyptic number.

It is an amenable number.

3427171729 is a deficient number, since it is larger than the sum of its proper divisors (201598355).

3427171729 is a wasteful number, since it uses less digits than its factorization.

3427171729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201598354.

The product of its digits is 148176, while the sum is 43.

The square root of 3427171729 is about 58542.0509463070. The cubic root of 3427171729 is about 1507.6896571236.

The spelling of 3427171729 in words is "three billion, four hundred twenty-seven million, one hundred seventy-one thousand, seven hundred twenty-nine".