3821286 has 32 divisors (see below), whose sum is σ = 8974080. Its totient is φ = 1061856.

The previous prime is 3821273. The next prime is 3821317. The reversal of 3821286 is 6821283.

It is a congruent number.

It is an unprimeable number.

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, 325 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (280440).

Almost surely, 2^3821286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4487040).

3821286 is an abundant number, since it is smaller than the sum of its proper divisors (5152794).

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

3821286 is a wasteful number, since it uses less digits than its factorization.

3821286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its digits is 4608, while the sum is 30.

The square root of 3821286 is about 1954.8109883055. The cubic root of 3821286 is about 156.3399064445.

The spelling of 3821286 in words is "three million, eight hundred twenty-one thousand, two hundred eighty-six".