800066736 has 60 divisors (see below), whose sum is σ = 2558946832. Its totient is φ = 228590208.

The previous prime is 800066731. The next prime is 800066737. The reversal of 800066736 is 637660008.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 800066736.

It is not an unprimeable number, because it can be changed into a prime (800066731) 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 11 ways as a sum of consecutive naturals, for example, 395851 + ... + 397866.

Almost surely, 2^800066736 is an apocalyptic number.

It is an amenable number.

800066736 is an abundant number, since it is smaller than the sum of its proper divisors (1758880096).

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

800066736 is a wasteful number, since it uses less digits than its factorization.

800066736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793738 (or 793729 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 800066736 is about 28285.4509598132. The cubic root of 800066736 is about 928.3435794275.

The spelling of 800066736 in words is "eight hundred million, sixty-six thousand, seven hundred thirty-six".