3855805 has 8 divisors (see below), whose sum is σ = 4672512. Its totient is φ = 3054288.

The previous prime is 3855799. The next prime is 3855829. The reversal of 3855805 is 5085583.

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 3855805 - 2¹¹ = 3853757 is a prime.

It is a Duffinian number.

3855805 is a lucky 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, 3229 + ... + 4258.

It is an arithmetic number, because the mean of its divisors is an integer number (584064).

Almost surely, 2^3855805 is an apocalyptic number.

It is an amenable number.

3855805 is a deficient number, since it is larger than the sum of its proper divisors (816707).

3855805 is a wasteful number, since it uses less digits than its factorization.

3855805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7595.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 3855805 is about 1963.6203808272. The cubic root of 3855805 is about 156.8092535190.

The spelling of 3855805 in words is "three million, eight hundred fifty-five thousand, eight hundred five".