3621729289 has 8 divisors (see below), whose sum is σ = 3813314240. Its totient is φ = 3430241136.

The previous prime is 3621729277. The next prime is 3621729323. The reversal of 3621729289 is 9829271263.

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 3621729289 - 2⁵ = 3621729257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3621729389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60187 + ... + 104239.

It is an arithmetic number, because the mean of its divisors is an integer number (476664280).

Almost surely, 2^3621729289 is an apocalyptic number.

It is an amenable number.

3621729289 is a deficient number, since it is larger than the sum of its proper divisors (191584951).

3621729289 is a wasteful number, since it uses less digits than its factorization.

3621729289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48399.

The product of its digits is 653184, while the sum is 49.

The square root of 3621729289 is about 60180.8049879694. The cubic root of 3621729289 is about 1535.6962664458.

The spelling of 3621729289 in words is "three billion, six hundred twenty-one million, seven hundred twenty-nine thousand, two hundred eighty-nine".