3930232321 has 4 divisors (see below), whose sum is σ = 3965013252. Its totient is φ = 3895451392.

The previous prime is 3930232309. The next prime is 3930232343. The reversal of 3930232321 is 1232320393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1232320393 = 251 ⋅4909643.

It can be written as a sum of positive squares in 2 ways, for example, as 602211600 + 3328020721 = 24540^2 + 57689^2 .

It is a cyclic number.

It is not a de Polignac number, because 3930232321 - 2²⁹ = 3393361409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3930232321.

It is not an unprimeable number, because it can be changed into a prime (3930239321) 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, 17390296 + ... + 17390521.

It is an arithmetic number, because the mean of its divisors is an integer number (991253313).

Almost surely, 2^3930232321 is an apocalyptic number.

It is an amenable number.

3930232321 is a deficient number, since it is larger than the sum of its proper divisors (34780931).

3930232321 is a wasteful number, since it uses less digits than its factorization.

3930232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34780930.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 3930232321 is about 62691.5649908343. The cubic root of 3930232321 is about 1578.1177608666.

The spelling of 3930232321 in words is "three billion, nine hundred thirty million, two hundred thirty-two thousand, three hundred twenty-one".