3559581 has 6 divisors (see below), whose sum is σ = 5141630. Its totient is φ = 2373048.

The previous prime is 3559571. The next prime is 3559597. The reversal of 3559581 is 1859553.

It is a happy number.

3559581 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 only one way, i.e., 3348900 + 210681 = 1830^2 + 459^2 .

It is not a de Polignac number, because 3559581 - 2⁷ = 3559453 is a prime.

It is a super-2 number, since 2×3559581² = 25341233791122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3559561) 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 5 ways as a sum of consecutive naturals, for example, 197746 + ... + 197763.

Almost surely, 2^3559581 is an apocalyptic number.

It is an amenable number.

3559581 is a deficient number, since it is larger than the sum of its proper divisors (1582049).

3559581 is a wasteful number, since it uses less digits than its factorization.

3559581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395515 (or 395512 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 3559581 is about 1886.6851883661. The cubic root of 3559581 is about 152.6861437450.

The spelling of 3559581 in words is "three million, five hundred fifty-nine thousand, five hundred eighty-one".