2447 has 2 divisors, whose sum is σ = 2448. Its totient is φ = 2446.
The previous prime is 2441. The next prime is 2459. The reversal of 2447 is 7442.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 2447 - 26 = 2383 is a prime.
It is a Chen prime.
It is a magnanimous number.
It is an Ulam number.
It is a plaindrome in base 10 and base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2441) 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 as a sum of consecutive naturals, namely, 1223 + 1224.
It is an arithmetic number, because the mean of its divisors is an integer number (1224).
22447 is an apocalyptic number.
2447 is a deficient number, since it is larger than the sum of its proper divisors (1).
2447 is an equidigital number, since it uses as much as digits as its factorization.
2447 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 224, while the sum is 17.
The square root of 2447 is about 49.4671608241. The cubic root of 2447 is about 13.4754928035.
Adding to 2447 its reverse (7442), we get a palindrome (9889).
It can be divided in two parts, 24 and 47, that multiplied together give a triangular number (1128 = T47).
The spelling of 2447 in words is "two thousand, four hundred forty-seven", and thus it is an iban number.
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