3652641321 has 32 divisors (see below), whose sum is σ = 5891804160. Its totient is φ = 1968369984.

The previous prime is 3652641287. The next prime is 3652641347. The reversal of 3652641321 is 1231462563.

It is not a de Polignac number, because 3652641321 - 2¹¹ = 3652639273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3652641361) 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 31 ways as a sum of consecutive naturals, for example, 43555 + ... + 95928.

It is an arithmetic number, because the mean of its divisors is an integer number (184118880).

Almost surely, 2^3652641321 is an apocalyptic number.

It is an amenable number.

3652641321 is a deficient number, since it is larger than the sum of its proper divisors (2239162839).

3652641321 is a wasteful number, since it uses less digits than its factorization.

3652641321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139565.

The product of its digits is 25920, while the sum is 33.

The square root of 3652641321 is about 60437.0856428402. The cubic root of 3652641321 is about 1540.0530314284.

The spelling of 3652641321 in words is "three billion, six hundred fifty-two million, six hundred forty-one thousand, three hundred twenty-one".