3884947 has 12 divisors (see below), whose sum is σ = 4327288. Its totient is φ = 3484800.

The previous prime is 3884929. The next prime is 3884977. The reversal of 3884947 is 7494883.

It is not a de Polignac number, because 3884947 - 2⁷ = 3884819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3884917) 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 11 ways as a sum of consecutive naturals, for example, 11572 + ... + 11902.

Almost surely, 2^3884947 is an apocalyptic number.

3884947 is a deficient number, since it is larger than the sum of its proper divisors (442341).

3884947 is a wasteful number, since it uses less digits than its factorization.

3884947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 439 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 3884947 is about 1971.0268897202. The cubic root of 3884947 is about 157.2033148323.

It can be divided in two parts, 388 and 4947, that added together give a palindrome (5335).

The spelling of 3884947 in words is "three million, eight hundred eighty-four thousand, nine hundred forty-seven".