9676890728 has 16 divisors (see below), whose sum is σ = 18161482500. Its totient is φ = 4833828736.

The previous prime is 9676890721. The next prime is 9676890749. The reversal of 9676890728 is 8270986769.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9639705124 + 37185604 = 98182^2 + 6098^2 .

It is not an unprimeable number, because it can be changed into a prime (9676890721) 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, 568163 + ... + 584946.

Almost surely, 2^9676890728 is an apocalyptic number.

It is an amenable number.

9676890728 is a deficient number, since it is larger than the sum of its proper divisors (8484591772).

9676890728 is a wasteful number, since it uses less digits than its factorization.

9676890728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154164 (or 1154160 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 62.

The square root of 9676890728 is about 98371.1885055782. The cubic root of 9676890728 is about 2130.9762640287.

The spelling of 9676890728 in words is "nine billion, six hundred seventy-six million, eight hundred ninety thousand, seven hundred twenty-eight".