2020393 has 2 divisors, whose sum is σ = 2020394. Its totient is φ = 2020392.

The previous prime is 2020391. The next prime is 2020409. The reversal of 2020393 is 3930202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 51984 = 1403^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020393 - 2¹ = 2020391 is a prime.

Together with 2020391, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2020393.

It is not a weakly prime, because it can be changed into another prime (2020391) 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, 1010196 + 1010197.

It is an arithmetic number, because the mean of its divisors is an integer number (1010197).

2^2020393 is an apocalyptic number.

It is an amenable number.

2020393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020393 is an equidigital number, since it uses as much as digits as its factorization.

2020393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2020393 is about 1421.4052905488. The cubic root of 2020393 is about 126.4188838755.

Adding to 2020393 its reverse (3930202), we get a palindrome (5950595).

The spelling of 2020393 in words is "two million, twenty thousand, three hundred ninety-three".