2018593 has 2 divisors, whose sum is σ = 2018594. Its totient is φ = 2018592.

The previous prime is 2018591. The next prime is 2018623. The reversal of 2018593 is 3958102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140624 + 877969 = 1068^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 2018593 - 2¹ = 2018591 is a prime.

Together with 2018591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2018591) 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, 1009296 + 1009297.

It is an arithmetic number, because the mean of its divisors is an integer number (1009297).

2^2018593 is an apocalyptic number.

It is an amenable number.

2018593 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018593 is an equidigital number, since it uses as much as digits as its factorization.

2018593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2018593 is about 1420.7719732596. The cubic root of 2018593 is about 126.3813298614.

The spelling of 2018593 in words is "two million, eighteen thousand, five hundred ninety-three".