3581682 has 32 divisors (see below), whose sum is σ = 7886592. Its totient is φ = 1077504.

The previous prime is 3581681. The next prime is 3581689. The reversal of 3581682 is 2861853.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178 + ... + 4154.

It is an arithmetic number, because the mean of its divisors is an integer number (246456).

Almost surely, 2^3581682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3581682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3943296).

3581682 is an abundant number, since it is smaller than the sum of its proper divisors (4304910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3581682 is a wasteful number, since it uses less digits than its factorization.

3581682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its digits is 11520, while the sum is 33.

The square root of 3581682 is about 1892.5332229581. The cubic root of 3581682 is about 153.0014951368.

The spelling of 3581682 in words is "three million, five hundred eighty-one thousand, six hundred eighty-two".