2928787289 has 2 divisors, whose sum is σ = 2928787290. Its totient is φ = 2928787288.

The previous prime is 2928787189. The next prime is 2928787291. The reversal of 2928787289 is 9827878292.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2635795600 + 292991689 = 51340^2 + 17117^2 .

It is a cyclic number.

It is not a de Polignac number, because 2928787289 - 2⁸ = 2928787033 is a prime.

It is a Sophie Germain prime.

Together with 2928787291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2928787189) 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, 1464393644 + 1464393645.

It is an arithmetic number, because the mean of its divisors is an integer number (1464393645).

Almost surely, 2^2928787289 is an apocalyptic number.

It is an amenable number.

2928787289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2928787289 is an equidigital number, since it uses as much as digits as its factorization.

2928787289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 62.

The square root of 2928787289 is about 54118.2713046158. The cubic root of 2928787289 is about 1430.7462304034.

The spelling of 2928787289 in words is "two billion, nine hundred twenty-eight million, seven hundred eighty-seven thousand, two hundred eighty-nine".