It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16923 = 3 ⋅5641.
It is a D-number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
32961 is a lucky number.
232961 is an apocalyptic number.
It is an amenable number.
32961 is a wasteful number, since it uses less digits than its factorization.
32961 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10990.
The square root of 32961 is about 181.5516455447. The cubic root of 32961 is about 32.0627025777.
The spelling of 32961 in words is "thirty-two thousand, nine hundred sixty-one".