9768644 has 12 divisors (see below), whose sum is σ = 17117100. Its totient is φ = 4878048.

The previous prime is 9768637. The next prime is 9768673. The reversal of 9768644 is 4468679.

It can be written as a sum of positive squares in 2 ways, for example, as 1183744 + 8584900 = 1088^2 + 2930^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9768595 and 9768604.

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, 4862 + ... + 6570.

It is an arithmetic number, because the mean of its divisors is an integer number (1426425).

Almost surely, 2^9768644 is an apocalyptic number.

It is an amenable number.

9768644 is a deficient number, since it is larger than the sum of its proper divisors (7348456).

9768644 is a wasteful number, since it uses less digits than its factorization.

9768644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3140 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 9768644 is about 3125.4830026733. The cubic root of 9768644 is about 213.7690173794.

The spelling of 9768644 in words is "nine million, seven hundred sixty-eight thousand, six hundred forty-four".