3855785 has 8 divisors (see below), whose sum is σ = 4658496. Its totient is φ = 3063600.

The previous prime is 3855781. The next prime is 3855793. The reversal of 3855785 is 5875583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3855785 - 2² = 3855781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855781) 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 7 ways as a sum of consecutive naturals, for example, 1799 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (582312).

Almost surely, 2^3855785 is an apocalyptic number.

It is an amenable number.

3855785 is a deficient number, since it is larger than the sum of its proper divisors (802711).

3855785 is a wasteful number, since it uses less digits than its factorization.

3855785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its digits is 168000, while the sum is 41.

The square root of 3855785 is about 1963.6152881866. The cubic root of 3855785 is about 156.8089823962.

It can be divided in two parts, 385578 and 5, that added together give a palindrome (385583).

The spelling of 3855785 in words is "three million, eight hundred fifty-five thousand, seven hundred eighty-five".