3675581 has 16 divisors (see below), whose sum is σ = 4569600. Its totient is φ = 2895984.

The previous prime is 3675563. The next prime is 3675583. The reversal of 3675581 is 1855763.

It is not a de Polignac number, because 3675581 - 2¹⁰ = 3674557 is a prime.

It is a super-2 number, since 2×3675581² = 27019791375122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3675583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15260 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (285600).

Almost surely, 2^3675581 is an apocalyptic number.

It is an amenable number.

3675581 is a deficient number, since it is larger than the sum of its proper divisors (894019).

3675581 is an equidigital number, since it uses as much as digits as its factorization.

3675581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 259 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 3675581 is about 1917.1804818535. The cubic root of 3675581 is about 154.3270303404.

The spelling of 3675581 in words is "three million, six hundred seventy-five thousand, five hundred eighty-one".