805416812 has 12 divisors (see below), whose sum is σ = 1414497336. Its totient is φ = 401274720.

The previous prime is 805416809. The next prime is 805416817. The reversal of 805416812 is 218614508.

It is not an unprimeable number, because it can be changed into a prime (805416817) 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 3 ways as a sum of consecutive naturals, for example, 357158 + ... + 359405.

It is an arithmetic number, because the mean of its divisors is an integer number (117874778).

Almost surely, 2^805416812 is an apocalyptic number.

It is an amenable number.

805416812 is a deficient number, since it is larger than the sum of its proper divisors (609080524).

805416812 is a wasteful number, since it uses less digits than its factorization.

805416812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716848 (or 716846 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 805416812 is about 28379.8663139910. The cubic root of 805416812 is about 930.4082733552.

The spelling of 805416812 in words is "eight hundred five million, four hundred sixteen thousand, eight hundred twelve".