9768861 has 6 divisors (see below), whose sum is σ = 14110590. Its totient is φ = 6512568.

The previous prime is 9768839. The next prime is 9768881. The reversal of 9768861 is 1688679.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5788836 + 3980025 = 2406^2 + 1995^2 .

It is not a de Polignac number, because 9768861 - 2⁶ = 9768797 is a prime.

It is a Curzon number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 542706 + ... + 542723.

It is an arithmetic number, because the mean of its divisors is an integer number (2351765).

Almost surely, 2^9768861 is an apocalyptic number.

It is an amenable number.

9768861 is a deficient number, since it is larger than the sum of its proper divisors (4341729).

9768861 is a wasteful number, since it uses less digits than its factorization.

9768861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085435 (or 1085432 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 9768861 is about 3125.5177171150. The cubic root of 9768861 is about 213.7706002512.

The spelling of 9768861 in words is "nine million, seven hundred sixty-eight thousand, eight hundred sixty-one".