805764155 has 16 divisors (see below), whose sum is σ = 1105515264. Its totient is φ = 552290400.

The previous prime is 805764151. The next prime is 805764199. The reversal of 805764155 is 551467508.

805764155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 805764155 - 2² = 805764151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805764151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138944 + ... + 144626.

It is an arithmetic number, because the mean of its divisors is an integer number (69094704).

Almost surely, 2^805764155 is an apocalyptic number.

805764155 is a deficient number, since it is larger than the sum of its proper divisors (299751109).

805764155 is a wasteful number, since it uses less digits than its factorization.

805764155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 805764155 is about 28385.9851863556. The cubic root of 805764155 is about 930.5420030177.

The spelling of 805764155 in words is "eight hundred five million, seven hundred sixty-four thousand, one hundred fifty-five".