3855823 has 4 divisors (see below), whose sum is σ = 3864168. Its totient is φ = 3847480.

The previous prime is 3855799. The next prime is 3855829. The reversal of 3855823 is 3285583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3285583 = 7 ⋅469369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3855823 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 (3855829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3436 + ... + 4417.

It is an arithmetic number, because the mean of its divisors is an integer number (966042).

Almost surely, 2^3855823 is an apocalyptic number.

3855823 is a deficient number, since it is larger than the sum of its proper divisors (8345).

3855823 is an equidigital number, since it uses as much as digits as its factorization.

3855823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344.

The product of its digits is 28800, while the sum is 34.

The square root of 3855823 is about 1963.6249641925. The cubic root of 3855823 is about 156.8094975288.

The spelling of 3855823 in words is "three million, eight hundred fifty-five thousand, eight hundred twenty-three".