3847218 has 8 divisors (see below), whose sum is σ = 7694448. Its totient is φ = 1282404.

The previous prime is 3847201. The next prime is 3847237. The reversal of 3847218 is 8127483.

3847218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

3847218 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320596 + ... + 320607.

It is an arithmetic number, because the mean of its divisors is an integer number (961806).

Almost surely, 2^3847218 is an apocalyptic number.

3847218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3847218 is a wasteful number, since it uses less digits than its factorization.

3847218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641208.

The product of its digits is 10752, while the sum is 33.

The square root of 3847218 is about 1961.4326396795. The cubic root of 3847218 is about 156.6927606051.

The spelling of 3847218 in words is "three million, eight hundred forty-seven thousand, two hundred eighteen".