3878147 has 16 divisors (see below), whose sum is σ = 5026560. Its totient is φ = 2905632.

The previous prime is 3878143. The next prime is 3878177. The reversal of 3878147 is 7418783.

3878147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3878147 - 2² = 3878143 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 3878147.

It is not an unprimeable number, because it can be changed into a prime (3878143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 608 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

Almost surely, 2^3878147 is an apocalyptic number.

3878147 is a deficient number, since it is larger than the sum of its proper divisors (1148413).

3878147 is a wasteful number, since it uses less digits than its factorization.

3878147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its digits is 37632, while the sum is 38.

The square root of 3878147 is about 1969.3011450766. The cubic root of 3878147 is about 157.1115412213. Note that the first 3 decimals are identical.

The spelling of 3878147 in words is "three million, eight hundred seventy-eight thousand, one hundred forty-seven".