819068933 has 2 divisors, whose sum is σ = 819068934. Its totient is φ = 819068932.

The previous prime is 819068917. The next prime is 819068951. The reversal of 819068933 is 339860918.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808719844 + 10349089 = 28438^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 819068933 - 2⁴ = 819068917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (819068633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409534466 + 409534467.

It is an arithmetic number, because the mean of its divisors is an integer number (409534467).

Almost surely, 2^819068933 is an apocalyptic number.

It is an amenable number.

819068933 is a deficient number, since it is larger than the sum of its proper divisors (1).

819068933 is an equidigital number, since it uses as much as digits as its factorization.

819068933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 819068933 is about 28619.3803741451. The cubic root of 819068933 is about 935.6357722342.

The spelling of 819068933 in words is "eight hundred nineteen million, sixty-eight thousand, nine hundred thirty-three".