968661 has 12 divisors (see below), whose sum is σ = 1432288. Its totient is φ = 630504.

The previous prime is 968659. The next prime is 968663. The reversal of 968661 is 166869.

It is an interprime number because it is at equal distance from previous prime (968659) and next prime (968663).

It is not a de Polignac number, because 968661 - 2¹ = 968659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968663) 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 11 ways as a sum of consecutive naturals, for example, 865 + ... + 1638.

2⁹⁶⁸⁶⁶¹ is an apocalyptic number.

It is an amenable number.

968661 is a deficient number, since it is larger than the sum of its proper divisors (463627).

968661 is a wasteful number, since it uses less digits than its factorization.

968661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2549 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 968661 is about 984.2057711678. The cubic root of 968661 is about 98.9442600214.

The spelling of 968661 in words is "nine hundred sixty-eight thousand, six hundred sixty-one".