800605693 has 2 divisors, whose sum is σ = 800605694. Its totient is φ = 800605692.

The previous prime is 800605649. The next prime is 800605703. The reversal of 800605693 is 396506008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678237849 + 122367844 = 26043^2 + 11062^2 .

It is a cyclic number.

It is not a de Polignac number, because 800605693 - 2²¹ = 798508541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800605093) 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, 400302846 + 400302847.

It is an arithmetic number, because the mean of its divisors is an integer number (400302847).

Almost surely, 2^800605693 is an apocalyptic number.

It is an amenable number.

800605693 is a deficient number, since it is larger than the sum of its proper divisors (1).

800605693 is an equidigital number, since it uses as much as digits as its factorization.

800605693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 800605693 is about 28294.9764622627. The cubic root of 800605693 is about 928.5519891101.

The spelling of 800605693 in words is "eight hundred million, six hundred five thousand, six hundred ninety-three".