3847489 has 2 divisors, whose sum is σ = 3847490. Its totient is φ = 3847488.

The previous prime is 3847477. The next prime is 3847499. The reversal of 3847489 is 9847483.

3847489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 207025 = 1908^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 3847489 - 2¹¹ = 3845441 is a prime.

It is not a weakly prime, because it can be changed into another prime (3847409) 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 as a sum of consecutive naturals, namely, 1923744 + 1923745.

It is an arithmetic number, because the mean of its divisors is an integer number (1923745).

Almost surely, 2^3847489 is an apocalyptic number.

It is an amenable number.

3847489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847489 is an equidigital number, since it uses as much as digits as its factorization.

3847489 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3847489 is about 1961.5017206212. The cubic root of 3847489 is about 156.6964396914.

The spelling of 3847489 in words is "three million, eight hundred forty-seven thousand, four hundred eighty-nine".