968644 has 6 divisors (see below), whose sum is σ = 1695134. Its totient is φ = 484320.

The previous prime is 968641. The next prime is 968647. The reversal of 968644 is 446869.

It is an interprime number because it is at equal distance from previous prime (968641) and next prime (968647).

It can be written as a sum of positive squares in only one way, i.e., 831744 + 136900 = 912^2 + 370^2 .

It is not an unprimeable number, because it can be changed into a prime (968641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121077 + ... + 121084.

2⁹⁶⁸⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

968644 is a deficient number, since it is larger than the sum of its proper divisors (726490).

968644 is a wasteful number, since it uses less digits than its factorization.

968644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242165 (or 242163 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 968644 is about 984.1971347245. The cubic root of 968644 is about 98.9436811942.

It can be divided in two parts, 9686 and 44, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 968644 in words is "nine hundred sixty-eight thousand, six hundred forty-four".