3932448821 has 4 divisors (see below), whose sum is σ = 4494227232. Its totient is φ = 3370670412.

The previous prime is 3932448803. The next prime is 3932448833. The reversal of 3932448821 is 1288442393.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3932448821 - 2¹⁰ = 3932447797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3932478821) 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, 280889195 + ... + 280889208.

It is an arithmetic number, because the mean of its divisors is an integer number (1123556808).

Almost surely, 2^3932448821 is an apocalyptic number.

It is an amenable number.

3932448821 is a deficient number, since it is larger than the sum of its proper divisors (561778411).

3932448821 is an equidigital number, since it uses as much as digits as its factorization.

3932448821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561778410.

The product of its digits is 331776, while the sum is 44.

The square root of 3932448821 is about 62709.2403159215. The cubic root of 3932448821 is about 1578.4143710393.

The spelling of 3932448821 in words is "three billion, nine hundred thirty-two million, four hundred forty-eight thousand, eight hundred twenty-one".