806840273 has 2 divisors, whose sum is σ = 806840274. Its totient is φ = 806840272.

The previous prime is 806840267. The next prime is 806840369. The reversal of 806840273 is 372048608.

806840273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782712529 + 24127744 = 27977^2 + 4912^2 .

It is a cyclic number.

It is not a de Polignac number, because 806840273 - 2⁴ = 806840257 is a prime.

It is a super-2 number, since 2×806840273² = 1301982452269429058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (806840873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403420136 + 403420137.

It is an arithmetic number, because the mean of its divisors is an integer number (403420137).

Almost surely, 2^806840273 is an apocalyptic number.

It is an amenable number.

806840273 is a deficient number, since it is larger than the sum of its proper divisors (1).

806840273 is an equidigital number, since it uses as much as digits as its factorization.

806840273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 806840273 is about 28404.9339552128. The cubic root of 806840273 is about 930.9560727085.

The spelling of 806840273 in words is "eight hundred six million, eight hundred forty thousand, two hundred seventy-three".