3994385233 has 4 divisors (see below), whose sum is σ = 3998306160. Its totient is φ = 3990464308.

The previous prime is 3994385231. The next prime is 3994385243. The reversal of 3994385233 is 3325834993.

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 3994385233 - 2¹ = 3994385231 is a prime.

It is a super-3 number, since 3×3994385233³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994385231) 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, 1958935 + ... + 1960972.

It is an arithmetic number, because the mean of its divisors is an integer number (999576540).

Almost surely, 2^3994385233 is an apocalyptic number.

It is an amenable number.

3994385233 is a deficient number, since it is larger than the sum of its proper divisors (3920927).

3994385233 is a wasteful number, since it uses less digits than its factorization.

3994385233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920926.

The product of its digits is 2099520, while the sum is 49.

The square root of 3994385233 is about 63201.1489848088. The cubic root of 3994385233 is about 1586.6579635838.

The spelling of 3994385233 in words is "three billion, nine hundred ninety-four million, three hundred eighty-five thousand, two hundred thirty-three".