809694882 has 24 divisors (see below), whose sum is σ = 1755048204. Its totient is φ = 269789184.

The previous prime is 809694869. The next prime is 809694883. The reversal of 809694882 is 288496908.

It can be written as a sum of positive squares in 2 ways, for example, as 809345601 + 349281 = 28449^2 + 591^2 .

It is not an unprimeable number, because it can be changed into a prime (809694883) 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 in 11 ways as a sum of consecutive naturals, for example, 45538 + ... + 60770.

Almost surely, 2^809694882 is an apocalyptic number.

809694882 is an abundant number, since it is smaller than the sum of its proper divisors (945353322).

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

809694882 is a wasteful number, since it uses less digits than its factorization.

809694882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18194 (or 18191 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 809694882 is about 28455.1380597600. The cubic root of 809694882 is about 932.0526910904.

The spelling of 809694882 in words is "eight hundred nine million, six hundred ninety-four thousand, eight hundred eighty-two".