24247 has 2 divisors, whose sum is σ = 24248. Its totient is φ = 24246.
The previous prime is 24239. The next prime is 24251. The reversal of 24247 is 74242.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 24247 - 23 = 24239 is a prime.
24247 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (24547) 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, 12123 + 12124.
It is an arithmetic number, because the mean of its divisors is an integer number (12124).
224247 is an apocalyptic number.
24247 is a deficient number, since it is larger than the sum of its proper divisors (1).
24247 is an equidigital number, since it uses as much as digits as its factorization.
24247 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 448, while the sum is 19.
The square root of 24247 is about 155.7144823066. The cubic root of 24247 is about 28.9436082110.
Adding to 24247 its reverse (74242), we get a palindrome (98489).
It can be divided in two parts, 242 and 47, that added together give a square (289 = 172).
The spelling of 24247 in words is "twenty-four thousand, two hundred forty-seven", and thus it is an iban number.
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