3993238209 has 24 divisors (see below), whose sum is σ = 5523451392. Its totient is φ = 2564304480.

The previous prime is 3993238187. The next prime is 3993238211. The reversal of 3993238209 is 9028323993.

3993238209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3993238209 - 2¹¹ = 3993236161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3993238229) 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 23 ways as a sum of consecutive naturals, for example, 1175904 + ... + 1179294.

It is an arithmetic number, because the mean of its divisors is an integer number (230143808).

Almost surely, 2^3993238209 is an apocalyptic number.

It is an amenable number.

3993238209 is a deficient number, since it is larger than the sum of its proper divisors (1530213183).

3993238209 is a wasteful number, since it uses less digits than its factorization.

3993238209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 3993238209 is about 63192.0739412784. The cubic root of 3993238209 is about 1586.5060746289.

The spelling of 3993238209 in words is "three billion, nine hundred ninety-three million, two hundred thirty-eight thousand, two hundred nine".