3306581 has 4 divisors (see below), whose sum is σ = 3322464. Its totient is φ = 3290700.

The previous prime is 3306559. The next prime is 3306587. The reversal of 3306581 is 1856033.

3306581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3306581 is a prime.

It is a super-2 number, since 2×3306581² = 21866955819122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3306581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3306587) 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 3 ways as a sum of consecutive naturals, for example, 7625 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (830616).

Almost surely, 2^3306581 is an apocalyptic number.

It is an amenable number.

3306581 is a deficient number, since it is larger than the sum of its proper divisors (15883).

3306581 is a wasteful number, since it uses less digits than its factorization.

3306581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15882.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3306581 is about 1818.4006709194. The cubic root of 3306581 is about 148.9794575526.

The spelling of 3306581 in words is "three million, three hundred six thousand, five hundred eighty-one".