800008856 has 8 divisors (see below), whose sum is σ = 1500016620. Its totient is φ = 400004424.

The previous prime is 800008849. The next prime is 800008873. The reversal of 800008856 is 658800008.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000546 + ... + 50000561.

Almost surely, 2^800008856 is an apocalyptic number.

It is an amenable number.

800008856 is a deficient number, since it is larger than the sum of its proper divisors (700007764).

800008856 is a wasteful number, since it uses less digits than its factorization.

800008856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100001113 (or 100001109 counting only the distinct ones).

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

The square root of 800008856 is about 28284.4278004700. The cubic root of 800008856 is about 928.3211922025.

The spelling of 800008856 in words is "eight hundred million, eight thousand, eight hundred fifty-six".