3601729361 has 4 divisors (see below), whose sum is σ = 3813595812. Its totient is φ = 3389862912.

The previous prime is 3601729309. The next prime is 3601729409. The reversal of 3601729361 is 1639271063.

It is a happy number.

3601729361 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, and also an emirpimes, since its reverse is a distinct semiprime: 1639271063 = 139 ⋅11793317.

It can be written as a sum of positive squares in 2 ways, for example, as 1157020225 + 2444709136 = 34015^2 + 49444^2 .

It is a cyclic number.

It is not a de Polignac number, because 3601729361 - 2⁶ = 3601729297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3601720361) 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, 105933200 + ... + 105933233.

It is an arithmetic number, because the mean of its divisors is an integer number (953398953).

Almost surely, 2^3601729361 is an apocalyptic number.

It is an amenable number.

3601729361 is a deficient number, since it is larger than the sum of its proper divisors (211866451).

3601729361 is a wasteful number, since it uses less digits than its factorization.

3601729361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211866450.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 3601729361 is about 60014.4096113592. The cubic root of 3601729361 is about 1532.8642376574.

The spelling of 3601729361 in words is "three billion, six hundred one million, seven hundred twenty-nine thousand, three hundred sixty-one".