3936605 has 16 divisors (see below), whose sum is σ = 5177520. Its totient is φ = 2860032.

The previous prime is 3936599. The next prime is 3936623. The reversal of 3936605 is 5066393.

3936605 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 8 ways, for example, as 20164 + 3916441 = 142^2 + 1979^2 .

It is a cyclic number.

It is not a de Polignac number, because 3936605 - 2⁴ = 3936589 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1667 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (323595).

Almost surely, 2^3936605 is an apocalyptic number.

It is an amenable number.

3936605 is a deficient number, since it is larger than the sum of its proper divisors (1240915).

3936605 is a wasteful number, since it uses less digits than its factorization.

3936605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 3936605 is about 1984.0879516796. The cubic root of 3936605 is about 157.8970247134.

The spelling of 3936605 in words is "three million, nine hundred thirty-six thousand, six hundred five".