9768889 has 4 divisors (see below), whose sum is σ = 10520356. Its totient is φ = 9017424.

The previous prime is 9768883. The next prime is 9768901. The reversal of 9768889 is 9888679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9888679 = 17 ⋅581687.

It can be written as a sum of positive squares in 2 ways, for example, as 4515625 + 5253264 = 2125^2 + 2292^2 .

It is not a de Polignac number, because 9768889 - 2³ = 9768881 is a prime.

It is an Ulam number.

It is a Duffinian number.

9768889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9768881) 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 3 ways as a sum of consecutive naturals, for example, 375714 + ... + 375739.

It is an arithmetic number, because the mean of its divisors is an integer number (2630089).

Almost surely, 2^9768889 is an apocalyptic number.

It is an amenable number.

9768889 is a deficient number, since it is larger than the sum of its proper divisors (751467).

9768889 is a wasteful number, since it uses less digits than its factorization.

9768889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751466.

The product of its digits is 1741824, while the sum is 55.

The square root of 9768889 is about 3125.5221963698. The cubic root of 9768889 is about 213.7708044910.

It can be divided in two parts, 97 and 68889, that added together give a palindrome (68986).

The spelling of 9768889 in words is "nine million, seven hundred sixty-eight thousand, eight hundred eighty-nine".