2086819387 has 2 divisors, whose sum is σ = 2086819388. Its totient is φ = 2086819386.

The previous prime is 2086819379. The next prime is 2086819393. The reversal of 2086819387 is 7839186802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2086819387 - 2³ = 2086819379 is a prime.

It is not a weakly prime, because it can be changed into another prime (2086819307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043409693 + 1043409694.

It is an arithmetic number, because the mean of its divisors is an integer number (1043409694).

Almost surely, 2^2086819387 is an apocalyptic number.

2086819387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086819387 is an equidigital number, since it uses as much as digits as its factorization.

2086819387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 2086819387 is about 45681.7183017452. The cubic root of 2086819387 is about 1277.8943625678.

The spelling of 2086819387 in words is "two billion, eighty-six million, eight hundred nineteen thousand, three hundred eighty-seven".