800663628 has 12 divisors (see below), whose sum is σ = 1868215160. Its totient is φ = 266887872.

The previous prime is 800663627. The next prime is 800663641. The reversal of 800663628 is 826366008.

800663628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (800663627) 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, 33360973 + ... + 33360996.

Almost surely, 2^800663628 is an apocalyptic number.

It is an amenable number.

800663628 is an abundant number, since it is smaller than the sum of its proper divisors (1067551532).

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

800663628 is a wasteful number, since it uses less digits than its factorization.

800663628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66721976 (or 66721974 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 800663628 is about 28296.0002120441. Note that the first 3 decimals coincide. The cubic root of 800663628 is about 928.5743864701.

The spelling of 800663628 in words is "eight hundred million, six hundred sixty-three thousand, six hundred twenty-eight".