3847864 has 16 divisors (see below), whose sum is σ = 7254000. Its totient is φ = 1913472.

The previous prime is 3847859. The next prime is 3847867. The reversal of 3847864 is 4687483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (453375).

Almost surely, 2^3847864 is an apocalyptic number.

It is an amenable number.

3847864 is a deficient number, since it is larger than the sum of its proper divisors (3406136).

3847864 is a wasteful number, since it uses less digits than its factorization.

3847864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622 (or 2618 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 3847864 is about 1961.5973083179. The cubic root of 3847864 is about 156.7015303930.

The spelling of 3847864 in words is "three million, eight hundred forty-seven thousand, eight hundred sixty-four".