3847229 has 4 divisors (see below), whose sum is σ = 3857760. Its totient is φ = 3836700.

The previous prime is 3847201. The next prime is 3847237. The reversal of 3847229 is 9227483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9227483 = 19 ⋅485657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3847229 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8 + 4¹⁰ + 7² + 2¹⁹ + 2²¹ + 9 .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847829) 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 3 ways as a sum of consecutive naturals, for example, 4697 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (964440).

Almost surely, 2^3847229 is an apocalyptic number.

It is an amenable number.

3847229 is a deficient number, since it is larger than the sum of its proper divisors (10531).

3847229 is a wasteful number, since it uses less digits than its factorization.

3847229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530.

The product of its digits is 24192, while the sum is 35.

The square root of 3847229 is about 1961.4354437503. The cubic root of 3847229 is about 156.6929099441.

The spelling of 3847229 in words is "three million, eight hundred forty-seven thousand, two hundred twenty-nine".