3935909 has 4 divisors (see below), whose sum is σ = 4071660. Its totient is φ = 3800160.

The previous prime is 3935887. The next prime is 3935917. The reversal of 3935909 is 9095393.

3935909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 616225 + 3319684 = 785^2 + 1822^2 .

It is not a de Polignac number, because 3935909 - 2¹² = 3931813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3935989) 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 3 ways as a sum of consecutive naturals, for example, 67832 + ... + 67889.

It is an arithmetic number, because the mean of its divisors is an integer number (1017915).

Almost surely, 2^3935909 is an apocalyptic number.

It is an amenable number.

3935909 is a deficient number, since it is larger than the sum of its proper divisors (135751).

3935909 is a wasteful number, since it uses less digits than its factorization.

3935909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135750.

The product of its (nonzero) digits is 32805, while the sum is 38.

The square root of 3935909 is about 1983.9125484759. The cubic root of 3935909 is about 157.8877186569.

The spelling of 3935909 in words is "three million, nine hundred thirty-five thousand, nine hundred nine".