24669 has 6 divisors (see below), whose sum is σ = 35646. Its totient is φ = 16440.

The previous prime is 24659. The next prime is 24671. The reversal of 24669 is 96642.

It can be written as a sum of positive squares in only one way, i.e., 19044 + 5625 = 138^2 + 75^2 .

It is not a de Polignac number, because 24669 - 2⁸ = 24413 is a prime.

It is a super-2 number, since 2×24669² = 1217119122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹³ + 4⁷ + 6 + 6 + 9² .

It is a Curzon number.

24669 is a lucky number.

It is a plaindrome in base 10 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1362 + ... + 1379.

It is an arithmetic number, because the mean of its divisors is an integer number (5941).

2²⁴⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

24669 is a deficient number, since it is larger than the sum of its proper divisors (10977).

24669 is a wasteful number, since it uses less digits than its factorization.

24669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747 (or 2744 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 24669 is about 157.0636813525. The cubic root of 24669 is about 29.1105569802.

Subtracting from 24669 its sum of digits (27), we obtain a palindrome (24642).

Adding to 24669 its product of digits (2592), we get a triangular number (27261 = T₂₃₃).

The spelling of 24669 in words is "twenty-four thousand, six hundred sixty-nine".