2647384189 has 2 divisors, whose sum is σ = 2647384190. Its totient is φ = 2647384188.

The previous prime is 2647384141. The next prime is 2647384217. The reversal of 2647384189 is 9814837462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1577440089 + 1069944100 = 39717^2 + 32710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2647384189 - 2²¹ = 2645287037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2647304189) 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, 1323692094 + 1323692095.

It is an arithmetic number, because the mean of its divisors is an integer number (1323692095).

Almost surely, 2^2647384189 is an apocalyptic number.

It is an amenable number.

2647384189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647384189 is an equidigital number, since it uses as much as digits as its factorization.

2647384189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The square root of 2647384189 is about 51452.7374296062. The cubic root of 2647384189 is about 1383.3720290655.

The spelling of 2647384189 in words is "two billion, six hundred forty-seven million, three hundred eighty-four thousand, one hundred eighty-nine".