3969705 has 16 divisors (see below), whose sum is σ = 6557184. Its totient is φ = 2048640.

The previous prime is 3969703. The next prime is 3969709. The reversal of 3969705 is 5079693.

3969705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3969705 - 2¹ = 3969703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3969703) 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, 3804 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (409824).

Almost surely, 2^3969705 is an apocalyptic number.

It is an amenable number.

3969705 is a deficient number, since it is larger than the sum of its proper divisors (2587479).

3969705 is a wasteful number, since it uses less digits than its factorization.

3969705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576.

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 3969705 is about 1992.4118550139. The cubic root of 3969705 is about 158.3383365609.

It can be divided in two parts, 396 and 9705, that added together give a palindrome (10101).

The spelling of 3969705 in words is "three million, nine hundred sixty-nine thousand, seven hundred five".