3855205 has 8 divisors (see below), whose sum is σ = 4636800. Its totient is φ = 3077136.

The previous prime is 3855197. The next prime is 3855211. The reversal of 3855205 is 5025583.

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 3855205 - 2³ = 3855197 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 3736 + ... + 4654.

It is an arithmetic number, because the mean of its divisors is an integer number (579600).

Almost surely, 2^3855205 is an apocalyptic number.

It is an amenable number.

3855205 is a deficient number, since it is larger than the sum of its proper divisors (781595).

3855205 is an equidigital number, since it uses as much as digits as its factorization.

3855205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 3855205 is about 1963.4675958620. The cubic root of 3855205 is about 156.8011194258.

The spelling of 3855205 in words is "three million, eight hundred fifty-five thousand, two hundred five".