806808080 has 40 divisors (see below), whose sum is σ = 2020125912. Its totient is φ = 297897984.

The previous prime is 806808071. The next prime is 806808089. The reversal of 806808080 is 80808608.

It is an interprime number because it is at equal distance from previous prime (806808071) and next prime (806808089).

It can be written as a sum of positive squares in 4 ways, for example, as 156150016 + 650658064 = 12496^2 + 25508^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (806808089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386849 + ... + 388928.

Almost surely, 2^806808080 is an apocalyptic number.

806808080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

806808080 is an abundant number, since it is smaller than the sum of its proper divisors (1213317832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806808080 is a wasteful number, since it uses less digits than its factorization.

806808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775803 (or 775797 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 806808080 is about 28404.3672698407. The cubic root of 806808080 is about 930.9436907999.

The spelling of 806808080 in words is "eight hundred six million, eight hundred eight thousand, eighty".