3564581 has 8 divisors (see below), whose sum is σ = 3677184. Its totient is φ = 3453280.

The previous prime is 3564569. The next prime is 3564619. The reversal of 3564581 is 1854653.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3564581 - 2¹⁴ = 3548197 is a prime.

It is a super-2 number, since 2×3564581² = 25412475411122, 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 (3564551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9116 + ... + 9498.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 2^3564581 is an apocalyptic number.

It is an amenable number.

3564581 is a deficient number, since it is larger than the sum of its proper divisors (112603).

3564581 is a wasteful number, since it uses less digits than its factorization.

3564581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 14400, while the sum is 32.

The square root of 3564581 is about 1888.0097987034. The cubic root of 3564581 is about 152.7576009889.

The spelling of 3564581 in words is "three million, five hundred sixty-four thousand, five hundred eighty-one".