806636873 has 16 divisors (see below), whose sum is σ = 942009600. Its totient is φ = 690429600.

The previous prime is 806636869. The next prime is 806636879. The reversal of 806636873 is 378636608.

It is not a de Polignac number, because 806636873 - 2² = 806636869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (806636879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352493 + ... + 354773.

It is an arithmetic number, because the mean of its divisors is an integer number (58875600).

Almost surely, 2^806636873 is an apocalyptic number.

It is an amenable number.

806636873 is a deficient number, since it is larger than the sum of its proper divisors (135372727).

806636873 is a wasteful number, since it uses less digits than its factorization.

806636873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3319 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The square root of 806636873 is about 28401.3533656409. The cubic root of 806636873 is about 930.8778364968.

The spelling of 806636873 in words is "eight hundred six million, six hundred thirty-six thousand, eight hundred seventy-three".