3813493 has 2 divisors, whose sum is σ = 3813494. Its totient is φ = 3813492.

The previous prime is 3813463. The next prime is 3813499. The reversal of 3813493 is 3943183.

3813493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3305124 + 508369 = 1818^2 + 713^2 .

It is a cyclic number.

It is not a de Polignac number, because 3813493 - 2⁵ = 3813461 is a prime.

It is a super-2 number, since 2×3813493² = 29085457722098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3813499) 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, 1906746 + 1906747.

It is an arithmetic number, because the mean of its divisors is an integer number (1906747).

Almost surely, 2^3813493 is an apocalyptic number.

It is an amenable number.

3813493 is a deficient number, since it is larger than the sum of its proper divisors (1).

3813493 is an equidigital number, since it uses as much as digits as its factorization.

3813493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 3813493 is about 1952.8166836649. The cubic root of 3813493 is about 156.2335560295.

It can be divided in two parts, 38 and 13493, that added together give a palindrome (13531).

The spelling of 3813493 in words is "three million, eight hundred thirteen thousand, four hundred ninety-three".