806334857 has 2 divisors, whose sum is σ = 806334858. Its totient is φ = 806334856.

The previous prime is 806334847. The next prime is 806334869. The reversal of 806334857 is 758433608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481758601 + 324576256 = 21949^2 + 18016^2 .

It is a cyclic number.

It is not a de Polignac number, because 806334857 - 2¹⁴ = 806318473 is a prime.

It is a super-2 number, since 2×806334857² = 1300351803226420898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (806334817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403167428 + 403167429.

It is an arithmetic number, because the mean of its divisors is an integer number (403167429).

Almost surely, 2^806334857 is an apocalyptic number.

It is an amenable number.

806334857 is a deficient number, since it is larger than the sum of its proper divisors (1).

806334857 is an equidigital number, since it uses as much as digits as its factorization.

806334857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 806334857 is about 28396.0359381376. The cubic root of 806334857 is about 930.7616441493.

The spelling of 806334857 in words is "eight hundred six million, three hundred thirty-four thousand, eight hundred fifty-seven".