809806082 has 16 divisors (see below), whose sum is σ = 1243563192. Its totient is φ = 395395200.

The previous prime is 809806061. The next prime is 809806159. The reversal of 809806082 is 280608908.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 793492561 + 16313521 = 28169^2 + 4039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12713 + ... + 42204.

Almost surely, 2^809806082 is an apocalyptic number.

809806082 is a deficient number, since it is larger than the sum of its proper divisors (433757110).

809806082 is a wasteful number, since it uses less digits than its factorization.

809806082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55093.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 809806082 is about 28457.0919455942. The cubic root of 809806082 is about 932.0953571684.

The spelling of 809806082 in words is "eight hundred nine million, eight hundred six thousand, eighty-two".