1896648217 has 2 divisors, whose sum is σ = 1896648218. Its totient is φ = 1896648216.

The previous prime is 1896648209. The next prime is 1896648307. The reversal of 1896648217 is 7128466981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1610497161 + 286151056 = 40131^2 + 16916^2 .

It is a cyclic number.

It is not a de Polignac number, because 1896648217 - 2³ = 1896648209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1896648917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948324108 + 948324109.

It is an arithmetic number, because the mean of its divisors is an integer number (948324109).

Almost surely, 2^1896648217 is an apocalyptic number.

It is an amenable number.

1896648217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896648217 is an equidigital number, since it uses as much as digits as its factorization.

1896648217 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1896648217 is about 43550.5248762859. The cubic root of 1896648217 is about 1237.8335865235.

The spelling of 1896648217 in words is "one billion, eight hundred ninety-six million, six hundred forty-eight thousand, two hundred seventeen".