2020387 has 2 divisors, whose sum is σ = 2020388. Its totient is φ = 2020386.

The previous prime is 2020321. The next prime is 2020391. The reversal of 2020387 is 7830202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020387 - 2¹⁵ = 1987619 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020687) 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, 1010193 + 1010194.

It is an arithmetic number, because the mean of its divisors is an integer number (1010194).

2^2020387 is an apocalyptic number.

2020387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020387 is an equidigital number, since it uses as much as digits as its factorization.

2020387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2020387 is about 1421.4031799599. The cubic root of 2020387 is about 126.4187587325.

Adding to 2020387 its reverse (7830202), we get a palindrome (9850589).

The spelling of 2020387 in words is "two million, twenty thousand, three hundred eighty-seven".