Subtracting from 24661 its sum of digits (19), we obtain a palindrome (24642).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 3-Lehmer number, since φ(24661) divides (24661-1)3.
It is a cyclic number.
It is a deceptive number, since it divides R24660.
It is a congruent number.
224661 is an apocalyptic number.
24661 is the 91-st octagonal number.
It is an amenable number.
24661 is a wasteful number, since it uses less digits than its factorization.
24661 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291.
The square root of 24661 is about 157.0382119104. The cubic root of 24661 is about 29.1074098504.
The spelling of 24661 in words is "twenty-four thousand, six hundred sixty-one".