3961585 has 4 divisors (see below), whose sum is σ = 4753908. Its totient is φ = 3169264.

The previous prime is 3961579. The next prime is 3961597. The reversal of 3961585 is 5851693.

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 2122849 + 1838736 = 1457^2 + 1356^2 .

It is a cyclic number.

It is not a de Polignac number, because 3961585 - 2⁷ = 3961457 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396154 + ... + 396163.

It is an arithmetic number, because the mean of its divisors is an integer number (1188477).

Almost surely, 2^3961585 is an apocalyptic number.

It is an amenable number.

3961585 is a deficient number, since it is larger than the sum of its proper divisors (792323).

3961585 is an equidigital number, since it uses as much as digits as its factorization.

3961585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792322.

The product of its digits is 32400, while the sum is 37.

The square root of 3961585 is about 1990.3730806057. The cubic root of 3961585 is about 158.2303029308.

The spelling of 3961585 in words is "three million, nine hundred sixty-one thousand, five hundred eighty-five".