799727816 has 8 divisors (see below), whose sum is σ = 1499489670. Its totient is φ = 399863904.

The previous prime is 799727813. The next prime is 799727857. The reversal of 799727816 is 618727997.

799727816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 780978916 + 18748900 = 27946^2 + 4330^2 .

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

It is not an unprimeable number, because it can be changed into a prime (799727813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49982981 + ... + 49982996.

Almost surely, 2^799727816 is an apocalyptic number.

It is an amenable number.

799727816 is a deficient number, since it is larger than the sum of its proper divisors (699761854).

799727816 is a wasteful number, since it uses less digits than its factorization.

799727816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99965983 (or 99965979 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 56.

The square root of 799727816 is about 28279.4592593281. The cubic root of 799727816 is about 928.2124742625.

The spelling of 799727816 in words is "seven hundred ninety-nine million, seven hundred twenty-seven thousand, eight hundred sixteen".