806808493 has 2 divisors, whose sum is σ = 806808494. Its totient is φ = 806808492.

The previous prime is 806808487. The next prime is 806808523. The reversal of 806808493 is 394808608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612958564 + 193849929 = 24758^2 + 13923^2 .

It is a cyclic number.

It is not a de Polignac number, because 806808493 - 2²⁹ = 269937581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806808193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403404246 + 403404247.

It is an arithmetic number, because the mean of its divisors is an integer number (403404247).

Almost surely, 2^806808493 is an apocalyptic number.

It is an amenable number.

806808493 is a deficient number, since it is larger than the sum of its proper divisors (1).

806808493 is an equidigital number, since it uses as much as digits as its factorization.

806808493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 806808493 is about 28404.3745398486. The cubic root of 806808493 is about 930.9438496480.

The spelling of 806808493 in words is "eight hundred six million, eight hundred eight thousand, four hundred ninety-three".