3818393 has 2 divisors, whose sum is σ = 3818394. Its totient is φ = 3818392.

The previous prime is 3818389. The next prime is 3818407. The reversal of 3818393 is 3938183.

3818393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2347024 + 1471369 = 1532^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 3818393 - 2² = 3818389 is a prime.

It is a super-3 number, since 3×3818393³ (a number of 21 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3818333) 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 as a sum of consecutive naturals, namely, 1909196 + 1909197.

It is an arithmetic number, because the mean of its divisors is an integer number (1909197).

Almost surely, 2^3818393 is an apocalyptic number.

It is an amenable number.

3818393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818393 is an equidigital number, since it uses as much as digits as its factorization.

3818393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 3818393 is about 1954.0708789601. The cubic root of 3818393 is about 156.3004428069.

The spelling of 3818393 in words is "three million, eight hundred eighteen thousand, three hundred ninety-three".