8996786728 has 16 divisors (see below), whose sum is σ = 16872912180. Its totient is φ = 4497343488.

The previous prime is 8996786717. The next prime is 8996786741. The reversal of 8996786728 is 8276876998.

It can be written as a sum of positive squares in 2 ways, for example, as 4758516324 + 4238270404 = 68982^2 + 65102^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94201 + ... + 163912.

Almost surely, 2^8996786728 is an apocalyptic number.

It is an amenable number.

8996786728 is a deficient number, since it is larger than the sum of its proper divisors (7876125452).

8996786728 is a wasteful number, since it uses less digits than its factorization.

8996786728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262476 (or 262472 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 70.

The square root of 8996786728 is about 94851.3928627303. The cubic root of 8996786728 is about 2079.8362426551.

The spelling of 8996786728 in words is "eight billion, nine hundred ninety-six million, seven hundred eighty-six thousand, seven hundred twenty-eight".