3243581 has 8 divisors (see below), whose sum is σ = 3564000. Its totient is φ = 2927440.

The previous prime is 3243523. The next prime is 3243587. The reversal of 3243581 is 1853423.

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 3243581 - 2¹⁰ = 3242557 is a prime.

It is a super-2 number, since 2×3243581² = 21041635407122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3243581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243587) 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, 650 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 2^3243581 is an apocalyptic number.

It is an amenable number.

3243581 is a deficient number, since it is larger than the sum of its proper divisors (320419).

3243581 is a wasteful number, since it uses less digits than its factorization.

3243581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139.

The product of its digits is 2880, while the sum is 26.

The square root of 3243581 is about 1800.9944475206. The cubic root of 3243581 is about 148.0272198535.

The spelling of 3243581 in words is "three million, two hundred forty-three thousand, five hundred eighty-one".