3938630833 has 4 divisors (see below), whose sum is σ = 3947065200. Its totient is φ = 3930196468.

The previous prime is 3938630827. The next prime is 3938630849. The reversal of 3938630833 is 3380368393.

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 a de Polignac number, because none of the positive numbers 2^k-3938630833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3938430833) 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 3 ways as a sum of consecutive naturals, for example, 4216483 + ... + 4217416.

It is an arithmetic number, because the mean of its divisors is an integer number (986766300).

Almost surely, 2^3938630833 is an apocalyptic number.

It is an amenable number.

3938630833 is a deficient number, since it is larger than the sum of its proper divisors (8434367).

3938630833 is an equidigital number, since it uses as much as digits as its factorization.

3938630833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434366.

The product of its (nonzero) digits is 839808, while the sum is 46.

The square root of 3938630833 is about 62758.5120362170. The cubic root of 3938630833 is about 1579.2410542118.

The spelling of 3938630833 in words is "three billion, nine hundred thirty-eight million, six hundred thirty thousand, eight hundred thirty-three".