74441 has 2 divisors, whose sum is σ = 74442. Its totient is φ = 74440.
The previous prime is 74419. The next prime is 74449. The reversal of 74441 is 14447.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 48841 + 25600 = 221^2 + 160^2 .
It is an emirp because it is prime and its reverse (14447) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 74441 - 26 = 74377 is a prime.
It is a nialpdrome in base 10.
It is not a weakly prime, because it can be changed into another prime (74449) 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, 37220 + 37221.
It is an arithmetic number, because the mean of its divisors is an integer number (37221).
274441 is an apocalyptic number.
It is an amenable number.
74441 is a deficient number, since it is larger than the sum of its proper divisors (1).
74441 is an equidigital number, since it uses as much as digits as its factorization.
74441 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 448, while the sum is 20.
The square root of 74441 is about 272.8387802348. The cubic root of 74441 is about 42.0665987990.
Adding to 74441 its reverse (14447), we get a palindrome (88888).
It can be divided in two parts, 74 and 441, that added together give a palindrome (515).
The spelling of 74441 in words is "seventy-four thousand, four hundred forty-one", and thus it is an iban number.
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