74761 has 2 divisors, whose sum is σ = 74762. Its totient is φ = 74760.
The previous prime is 74759. The next prime is 74771. The reversal of 74761 is 16747.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 57600 + 17161 = 240^2 + 131^2 .
It is an emirp because it is prime and its reverse (16747) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 74761 - 21 = 74759 is a prime.
Together with 74759, it forms a pair of twin primes.
It is an alternating number because its digits alternate between odd and even.
74761 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (74731) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37380 + 37381.
It is an arithmetic number, because the mean of its divisors is an integer number (37381).
274761 is an apocalyptic number.
It is an amenable number.
74761 is a deficient number, since it is larger than the sum of its proper divisors (1).
74761 is an equidigital number, since it uses as much as digits as its factorization.
74761 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1176, while the sum is 25.
The square root of 74761 is about 273.4245782661. The cubic root of 74761 is about 42.1267899517.
It can be divided in two parts, 747 and 61, that added together give a palindrome (808).
The spelling of 74761 in words is "seventy-four thousand, seven hundred sixty-one".
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