4493789 has 2 divisors, whose sum is σ = 4493790. Its totient is φ = 4493788.

The previous prime is 4493779. The next prime is 4493813. The reversal of 4493789 is 9873944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4481689 + 12100 = 2117^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 4493789 - 2⁴ = 4493773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4493759) 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, 2246894 + 2246895.

It is an arithmetic number, because the mean of its divisors is an integer number (2246895).

Almost surely, 2^4493789 is an apocalyptic number.

It is an amenable number.

4493789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493789 is an equidigital number, since it uses as much as digits as its factorization.

4493789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 4493789 is about 2119.8558913285. The cubic root of 4493789 is about 165.0203709162.

The spelling of 4493789 in words is "four million, four hundred ninety-three thousand, seven hundred eighty-nine".