3975705 has 24 divisors (see below), whose sum is σ = 7297992. Its totient is φ = 1995264.

The previous prime is 3975703. The next prime is 3975707. The reversal of 3975705 is 5075793.

3975705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3975703) and next prime (3975707).

It can be written as a sum of positive squares in 4 ways, for example, as 746496 + 3229209 = 864^2 + 1797^2 .

It is not a de Polignac number, because 3975705 - 2¹ = 3975703 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3975705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975701) 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 23 ways as a sum of consecutive naturals, for example, 1834 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (304083).

Almost surely, 2^3975705 is an apocalyptic number.

It is an amenable number.

3975705 is a deficient number, since it is larger than the sum of its proper divisors (3322287).

3975705 is a wasteful number, since it uses less digits than its factorization.

3975705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 3975705 is about 1993.9169992755. The cubic root of 3975705 is about 158.4180697552.

The spelling of 3975705 in words is "three million, nine hundred seventy-five thousand, seven hundred five".