3823813 has 12 divisors (see below), whose sum is σ = 4513260. Its totient is φ = 3229632.

The previous prime is 3823811. The next prime is 3823867. The reversal of 3823813 is 3183283.

3823813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 1844164 = 1407^2 + 1358^2 .

It is not a de Polignac number, because 3823813 - 2¹ = 3823811 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 (3823811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3043 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (376105).

Almost surely, 2^3823813 is an apocalyptic number.

It is an amenable number.

3823813 is a deficient number, since it is larger than the sum of its proper divisors (689447).

3823813 is a wasteful number, since it uses less digits than its factorization.

3823813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1149 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 3823813 is about 1955.4572355334. The cubic root of 3823813 is about 156.3743611533.

The spelling of 3823813 in words is "three million, eight hundred twenty-three thousand, eight hundred thirteen".