805995329 has 2 divisors, whose sum is σ = 805995330. Its totient is φ = 805995328.

The previous prime is 805995317. The next prime is 805995331. The reversal of 805995329 is 923599508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645922225 + 160073104 = 25415^2 + 12652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805995329 is a prime.

Together with 805995331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (805995349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402997664 + 402997665.

It is an arithmetic number, because the mean of its divisors is an integer number (402997665).

Almost surely, 2^805995329 is an apocalyptic number.

It is an amenable number.

805995329 is a deficient number, since it is larger than the sum of its proper divisors (1).

805995329 is an equidigital number, since it uses as much as digits as its factorization.

805995329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 805995329 is about 28390.0568685588. The cubic root of 805995329 is about 930.6309854437.

The spelling of 805995329 in words is "eight hundred five million, nine hundred ninety-five thousand, three hundred twenty-nine".