800728008 has 16 divisors (see below), whose sum is σ = 2001820080. Its totient is φ = 266909328.

The previous prime is 800727979. The next prime is 800728009. The reversal of 800728008 is 800827008.

It is a self number, because there is not a number n which added to its sum of digits gives 800728008.

It is not an unprimeable number, because it can be changed into a prime (800728009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16681810 + ... + 16681857.

It is an arithmetic number, because the mean of its divisors is an integer number (125113755).

Almost surely, 2^800728008 is an apocalyptic number.

It is an amenable number.

800728008 is an abundant number, since it is smaller than the sum of its proper divisors (1201092072).

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

800728008 is a wasteful number, since it uses less digits than its factorization.

800728008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33363676 (or 33363672 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 800728008 is about 28297.1378057923. The cubic root of 800728008 is about 928.5992741653.

The spelling of 800728008 in words is "eight hundred million, seven hundred twenty-eight thousand, eight".