3847850847 has 6 divisors (see below), whose sum is σ = 5558006792. Its totient is φ = 2565233892.

The previous prime is 3847850821. The next prime is 3847850869. The reversal of 3847850847 is 7480587483.

It is a happy number.

It is not a de Polignac number, because 3847850847 - 2⁷ = 3847850719 is a prime.

It is a super-3 number, since 3×3847850847³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3847850793 and 3847850802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847850807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213769483 + ... + 213769500.

Almost surely, 2^3847850847 is an apocalyptic number.

3847850847 is a deficient number, since it is larger than the sum of its proper divisors (1710155945).

3847850847 is a wasteful number, since it uses less digits than its factorization.

3847850847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427538989 (or 427538986 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The square root of 3847850847 is about 62031.0474440018. The cubic root of 3847850847 is about 1567.0135184398.

The spelling of 3847850847 in words is "three billion, eight hundred forty-seven million, eight hundred fifty thousand, eight hundred forty-seven".