3828621 has 16 divisors (see below), whose sum is σ = 5539968. Its totient is φ = 2342400.

The previous prime is 3828611. The next prime is 3828637. The reversal of 3828621 is 1268283.

It is not a de Polignac number, because 3828621 - 2⁵ = 3828589 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3828611) 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, 1176 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (346248).

Almost surely, 2^3828621 is an apocalyptic number.

It is an amenable number.

3828621 is a deficient number, since it is larger than the sum of its proper divisors (1711347).

3828621 is a wasteful number, since it uses less digits than its factorization.

3828621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

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

The square root of 3828621 is about 1956.6862293173. The cubic root of 3828621 is about 156.4398745582.

The spelling of 3828621 in words is "three million, eight hundred twenty-eight thousand, six hundred twenty-one".