3828205 has 8 divisors (see below), whose sum is σ = 4718232. Its totient is φ = 2979648.

The previous prime is 3828169. The next prime is 3828217. The reversal of 3828205 is 5028283.

It can be written as a sum of positive squares in 4 ways, for example, as 1898884 + 1929321 = 1378^2 + 1389^2 .

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 3828205 - 2⁹ = 3827693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10162 + ... + 10531.

It is an arithmetic number, because the mean of its divisors is an integer number (589779).

Almost surely, 2^3828205 is an apocalyptic number.

It is an amenable number.

3828205 is a deficient number, since it is larger than the sum of its proper divisors (890027).

3828205 is a wasteful number, since it uses less digits than its factorization.

3828205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20735.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 3828205 is about 1956.5799242556. The cubic root of 3828205 is about 156.4342083453.

The spelling of 3828205 in words is "three million, eight hundred twenty-eight thousand, two hundred five".