3682021 has 8 divisors (see below), whose sum is σ = 4277504. Its totient is φ = 3103920.

The previous prime is 3681967. The next prime is 3682031. The reversal of 3682021 is 1202863.

3682021 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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 3682021 - 2¹⁵ = 3649253 is a prime.

3682021 is strictly pandigital in base 8.

3682021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3681983 and 3682001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3682031) 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, 3885 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (534688).

Almost surely, 2^3682021 is an apocalyptic number.

It is an amenable number.

3682021 is a deficient number, since it is larger than the sum of its proper divisors (595483).

3682021 is an equidigital number, since it uses as much as digits as its factorization.

3682021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8691.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3682021 is about 1918.8592965614. The cubic root of 3682021 is about 154.4171100845.

Adding to 3682021 its reverse (1202863), we get a palindrome (4884884).

The spelling of 3682021 in words is "three million, six hundred eighty-two thousand, twenty-one".