805777122 has 16 divisors (see below), whose sum is σ = 1667125440. Its totient is φ = 259330512.

The previous prime is 805777111. The next prime is 805777177. The reversal of 805777122 is 221777508.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2315278 + ... + 2315625.

It is an arithmetic number, because the mean of its divisors is an integer number (104195340).

Almost surely, 2^805777122 is an apocalyptic number.

805777122 is an abundant number, since it is smaller than the sum of its proper divisors (861348318).

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

805777122 is a wasteful number, since it uses less digits than its factorization.

805777122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630937.

The product of its (nonzero) digits is 54880, while the sum is 39.

The square root of 805777122 is about 28386.2135904034. The cubic root of 805777122 is about 930.5469946659.

The spelling of 805777122 in words is "eight hundred five million, seven hundred seventy-seven thousand, one hundred twenty-two".