9769128 has 16 divisors (see below), whose sum is σ = 24422880. Its totient is φ = 3256368.

The previous prime is 9769121. The next prime is 9769129. The reversal of 9769128 is 8219679.

It is a self number, because there is not a number n which added to its sum of digits gives 9769128.

It is not an unprimeable number, because it can be changed into a prime (9769121) 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, 203500 + ... + 203547.

It is an arithmetic number, because the mean of its divisors is an integer number (1526430).

Almost surely, 2^9769128 is an apocalyptic number.

It is an amenable number.

9769128 is an abundant number, since it is smaller than the sum of its proper divisors (14653752).

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

9769128 is a wasteful number, since it uses less digits than its factorization.

9769128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407056 (or 407052 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 9769128 is about 3125.5604297470. The cubic root of 9769128 is about 213.7725478078.

The spelling of 9769128 in words is "nine million, seven hundred sixty-nine thousand, one hundred twenty-eight".