3943305 has 12 divisors (see below), whose sum is σ = 6835140. Its totient is φ = 2103072.

The previous prime is 3943301. The next prime is 3943307. The reversal of 3943305 is 5033493.

3943305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 3316041 = 792^2 + 1821^2 .

It is not a de Polignac number, because 3943305 - 2² = 3943301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3943301) 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 11 ways as a sum of consecutive naturals, for example, 43770 + ... + 43859.

It is an arithmetic number, because the mean of its divisors is an integer number (569595).

Almost surely, 2^3943305 is an apocalyptic number.

It is an amenable number.

3943305 is a deficient number, since it is larger than the sum of its proper divisors (2891835).

3943305 is a wasteful number, since it uses less digits than its factorization.

3943305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87640 (or 87637 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 3943305 is about 1985.7756670883. The cubic root of 3943305 is about 157.9865528266.

Adding to 3943305 its reverse (5033493), we get a palindrome (8976798).

The spelling of 3943305 in words is "three million, nine hundred forty-three thousand, three hundred five".