3847982117 has 4 divisors (see below), whose sum is σ = 4397693856. Its totient is φ = 3298270380.

The previous prime is 3847982111. The next prime is 3847982119. The reversal of 3847982117 is 7112897483.

It is a happy number.

3847982117 is digitally balanced in base 2 and base 3, because in such bases 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 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 3847982117 - 2⁸ = 3847981861 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 (3847982111) 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, 274855859 + ... + 274855872.

It is an arithmetic number, because the mean of its divisors is an integer number (1099423464).

Almost surely, 2^3847982117 is an apocalyptic number.

It is an amenable number.

3847982117 is a deficient number, since it is larger than the sum of its proper divisors (549711739).

3847982117 is an equidigital number, since it uses as much as digits as its factorization.

3847982117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549711738.

The product of its digits is 677376, while the sum is 50.

The square root of 3847982117 is about 62032.1055341506. The cubic root of 3847982117 is about 1567.0313378697.

The spelling of 3847982117 in words is "three billion, eight hundred forty-seven million, nine hundred eighty-two thousand, one hundred seventeen".