3975505 has 4 divisors (see below), whose sum is σ = 4770612. Its totient is φ = 3180400.

The previous prime is 3975493. The next prime is 3975509. The reversal of 3975505 is 5055793.

3975505 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 414736 + 3560769 = 644^2 + 1887^2 .

It is not a de Polignac number, because 3975505 - 2⁵ = 3975473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3975509) 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, 397546 + ... + 397555.

It is an arithmetic number, because the mean of its divisors is an integer number (1192653).

Almost surely, 2^3975505 is an apocalyptic number.

It is an amenable number.

3975505 is a deficient number, since it is larger than the sum of its proper divisors (795107).

3975505 is an equidigital number, since it uses as much as digits as its factorization.

3975505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795106.

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 3975505 is about 1993.8668461058. The cubic root of 3975505 is about 158.4154132750.

The spelling of 3975505 in words is "three million, nine hundred seventy-five thousand, five hundred five".