800729029 has 2 divisors, whose sum is σ = 800729030. Its totient is φ = 800729028.

The previous prime is 800729023. The next prime is 800729081. The reversal of 800729029 is 920927008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465912225 + 334816804 = 21585^2 + 18298^2 .

It is a cyclic number.

It is not a de Polignac number, because 800729029 - 2³ = 800729021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800729021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400364514 + 400364515.

It is an arithmetic number, because the mean of its divisors is an integer number (400364515).

Almost surely, 2^800729029 is an apocalyptic number.

It is an amenable number.

800729029 is a deficient number, since it is larger than the sum of its proper divisors (1).

800729029 is an equidigital number, since it uses as much as digits as its factorization.

800729029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 800729029 is about 28297.1558464804. The cubic root of 800729029 is about 928.5996688475.

The spelling of 800729029 in words is "eight hundred million, seven hundred twenty-nine thousand, twenty-nine".