2064890887 has 2 divisors, whose sum is σ = 2064890888. Its totient is φ = 2064890886.

The previous prime is 2064890881. The next prime is 2064890999. The reversal of 2064890887 is 7880984602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2064890887 - 2³ = 2064890879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2064890881) 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, 1032445443 + 1032445444.

It is an arithmetic number, because the mean of its divisors is an integer number (1032445444).

Almost surely, 2^2064890887 is an apocalyptic number.

2064890887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064890887 is an equidigital number, since it uses as much as digits as its factorization.

2064890887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 2064890887 is about 45441.0704869505. The cubic root of 2064890887 is about 1273.4025128407.

The spelling of 2064890887 in words is "two billion, sixty-four million, eight hundred ninety thousand, eight hundred eighty-seven".