3856147 has 2 divisors, whose sum is σ = 3856148. Its totient is φ = 3856146.

The previous prime is 3856141. The next prime is 3856187. The reversal of 3856147 is 7416583.

It is a weak prime.

It is an emirp because it is prime and its reverse (7416583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3856147 - 2¹¹ = 3854099 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (3856141) 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 as a sum of consecutive naturals, namely, 1928073 + 1928074.

It is an arithmetic number, because the mean of its divisors is an integer number (1928074).

Almost surely, 2^3856147 is an apocalyptic number.

3856147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856147 is an equidigital number, since it uses as much as digits as its factorization.

3856147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 3856147 is about 1963.7074629384. The cubic root of 3856147 is about 156.8138895747.

The spelling of 3856147 in words is "three million, eight hundred fifty-six thousand, one hundred forty-seven".