2000020387 has 2 divisors, whose sum is σ = 2000020388. Its totient is φ = 2000020386.

The previous prime is 2000020367. The next prime is 2000020411. The reversal of 2000020387 is 7830200002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2000020387 - 2²³ = 1991631779 is a prime.

It is not a weakly prime, because it can be changed into another prime (2000020367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000010193 + 1000010194.

It is an arithmetic number, because the mean of its divisors is an integer number (1000010194).

Almost surely, 2^2000020387 is an apocalyptic number.

2000020387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000020387 is an equidigital number, since it uses as much as digits as its factorization.

2000020387 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 2000020387 is about 44721.5874830042. The cubic root of 2000020387 is about 1259.9253308821.

Adding to 2000020387 its reverse (7830200002), we get a palindrome (9830220389).

The spelling of 2000020387 in words is "two billion, twenty thousand, three hundred eighty-seven".