3843745 has 16 divisors (see below), whose sum is σ = 4815360. Its totient is φ = 2942784.

The previous prime is 3843743. The next prime is 3843773. The reversal of 3843745 is 5473483.

It is a happy number.

3843745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3843745 - 2¹ = 3843743 is a prime.

It is an Ulam number.

Its product of digits (40320) is a multiple of the sum of its prime divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 3843745.

It is not an unprimeable number, because it can be changed into a prime (3843743) 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, 14484 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (300960).

Almost surely, 2^3843745 is an apocalyptic number.

It is an amenable number.

3843745 is a deficient number, since it is larger than the sum of its proper divisors (971615).

3843745 is a wasteful number, since it uses less digits than its factorization.

3843745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its digits is 40320, while the sum is 34.

The square root of 3843745 is about 1960.5471175159. The cubic root of 3843745 is about 156.6455959792.

The spelling of 3843745 in words is "three million, eight hundred forty-three thousand, seven hundred forty-five".