806797997 has 2 divisors, whose sum is σ = 806797998. Its totient is φ = 806797996.

The previous prime is 806797991. The next prime is 806798021. The reversal of 806797997 is 799797608.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 750157321 + 56640676 = 27389^2 + 7526^2 .

It is a cyclic number.

It is not a de Polignac number, because 806797997 - 2¹² = 806793901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806797991) 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, 403398998 + 403398999.

It is an arithmetic number, because the mean of its divisors is an integer number (403398999).

Almost surely, 2^806797997 is an apocalyptic number.

It is an amenable number.

806797997 is a deficient number, since it is larger than the sum of its proper divisors (1).

806797997 is an equidigital number, since it uses as much as digits as its factorization.

806797997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12002256, while the sum is 62.

The square root of 806797997 is about 28404.1897789745. The cubic root of 806797997 is about 930.9398126598.

The spelling of 806797997 in words is "eight hundred six million, seven hundred ninety-seven thousand, nine hundred ninety-seven".