3847689 has 16 divisors (see below), whose sum is σ = 5885440. Its totient is φ = 2481840.

The previous prime is 3847687. The next prime is 3847721. The reversal of 3847689 is 9867483.

It is a happy number.

3847689 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 3847689 - 2¹ = 3847687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3847687) 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, 1462 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (367840).

Almost surely, 2^3847689 is an apocalyptic number.

It is an amenable number.

3847689 is a deficient number, since it is larger than the sum of its proper divisors (2037751).

3847689 is a wasteful number, since it uses less digits than its factorization.

3847689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637 (or 4631 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3847689 is about 1961.5527013058. The cubic root of 3847689 is about 156.6991547734.

The spelling of 3847689 in words is "three million, eight hundred forty-seven thousand, six hundred eighty-nine".