19683089 has 2 divisors, whose sum is σ = 19683090. Its totient is φ = 19683088.

The previous prime is 19683073. The next prime is 19683113. The reversal of 19683089 is 98038691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 146689 = 4420^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 19683089 - 2⁴ = 19683073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19683029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9841544 + 9841545.

It is an arithmetic number, because the mean of its divisors is an integer number (9841545).

Almost surely, 2^19683089 is an apocalyptic number.

It is an amenable number.

19683089 is a deficient number, since it is larger than the sum of its proper divisors (1).

19683089 is an equidigital number, since it uses as much as digits as its factorization.

19683089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 19683089 is about 4436.5627460907. The cubic root of 19683089 is about 270.0004069495. Note that the first 3 decimals are identical.

The spelling of 19683089 in words is "nineteen million, six hundred eighty-three thousand, eighty-nine".