4493813 has 2 divisors, whose sum is σ = 4493814. Its totient is φ = 4493812.

The previous prime is 4493789. The next prime is 4493821. The reversal of 4493813 is 3183944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4008004 + 485809 = 2002^2 + 697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4493813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4493813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4493843) 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, 2246906 + 2246907.

It is an arithmetic number, because the mean of its divisors is an integer number (2246907).

Almost surely, 2^4493813 is an apocalyptic number.

It is an amenable number.

4493813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493813 is an equidigital number, since it uses as much as digits as its factorization.

4493813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 4493813 is about 2119.8615520831. The cubic root of 4493813 is about 165.0206646907.

The spelling of 4493813 in words is "four million, four hundred ninety-three thousand, eight hundred thirteen".