2005210387 has 2 divisors, whose sum is σ = 2005210388. Its totient is φ = 2005210386.

The previous prime is 2005210381. The next prime is 2005210393. The reversal of 2005210387 is 7830125002.

It is a balanced prime because it is at equal distance from previous prime (2005210381) and next prime (2005210393).

It is a cyclic number.

It is not a de Polignac number, because 2005210387 - 2³ = 2005210379 is a prime.

It is a super-2 number, since 2×2005210387² = 8041737392265379538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2005210381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002605193 + 1002605194.

It is an arithmetic number, because the mean of its divisors is an integer number (1002605194).

Almost surely, 2^2005210387 is an apocalyptic number.

2005210387 is the 25854-th hex number.

2005210387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005210387 is an equidigital number, since it uses as much as digits as its factorization.

2005210387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2005210387 is about 44779.5755562734. The cubic root of 2005210387 is about 1261.0142138524.

Adding to 2005210387 its reverse (7830125002), we get a palindrome (9835335389).

The spelling of 2005210387 in words is "two billion, five million, two hundred ten thousand, three hundred eighty-seven".