3853818 has 20 divisors (see below), whose sum is σ = 8635770. Its totient is φ = 1284552.

The previous prime is 3853813. The next prime is 3853847. The reversal of 3853818 is 8183583.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3674889 + 178929 = 1917^2 + 423^2 .

It is not an unprimeable number, because it can be changed into a prime (3853813) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11733 + ... + 12056.

Almost surely, 2^3853818 is an apocalyptic number.

3853818 is an abundant number, since it is smaller than the sum of its proper divisors (4781952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3853818 is a wasteful number, since it uses less digits than its factorization.

3853818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23803 (or 23794 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 3853818 is about 1963.1143624354. The cubic root of 3853818 is about 156.7823128824.

The spelling of 3853818 in words is "three million, eight hundred fifty-three thousand, eight hundred eighteen".