3992332321 has 4 divisors (see below), whose sum is σ = 3992469012. Its totient is φ = 3992195632.

The previous prime is 3992332313. The next prime is 3992332339. The reversal of 3992332321 is 1232332993.

3992332321 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 a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1187147025 + 2805185296 = 34455^2 + 52964^2 .

It is a cyclic number.

It is not a de Polignac number, because 3992332321 - 2³ = 3992332313 is a prime.

It is a super-2 number, since 2×3992332321² = 31877434722602494082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3992332361) 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, 4906 + ... + 89491.

It is an arithmetic number, because the mean of its divisors is an integer number (998117253).

Almost surely, 2^3992332321 is an apocalyptic number.

It is an amenable number.

3992332321 is a deficient number, since it is larger than the sum of its proper divisors (136691).

3992332321 is an equidigital number, since it uses as much as digits as its factorization.

3992332321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136690.

The product of its digits is 52488, while the sum is 37.

The square root of 3992332321 is about 63184.9058003571. The cubic root of 3992332321 is about 1586.3860963530.

The spelling of 3992332321 in words is "three billion, nine hundred ninety-two million, three hundred thirty-two thousand, three hundred twenty-one".