800988017 has 2 divisors, whose sum is σ = 800988018. Its totient is φ = 800988016.

The previous prime is 800987989. The next prime is 800988029. The reversal of 800988017 is 710889008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 736362496 + 64625521 = 27136^2 + 8039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800988017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (800988037) 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, 400494008 + 400494009.

It is an arithmetic number, because the mean of its divisors is an integer number (400494009).

Almost surely, 2^800988017 is an apocalyptic number.

It is an amenable number.

800988017 is a deficient number, since it is larger than the sum of its proper divisors (1).

800988017 is an equidigital number, since it uses as much as digits as its factorization.

800988017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 800988017 is about 28301.7316961348. The cubic root of 800988017 is about 928.6997735597.

Subtracting from 800988017 its reverse (710889008), we obtain a palindrome (90099009).

The spelling of 800988017 in words is "eight hundred million, nine hundred eighty-eight thousand, seventeen".