9761 has 4 divisors (see below), whose sum is σ = 10032. Its totient is φ = 9492.
The previous prime is 9749. The next prime is 9767. The reversal of 9761 is 1679.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1679 = 23 ⋅73.
It is a cyclic number.
It is not a de Polignac number, because 9761 - 26 = 9697 is a prime.
It is a Duffinian number.
It is a plaindrome in base 13.
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (9767) 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 in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 156.
It is an arithmetic number, because the mean of its divisors is an integer number (2508).
It is an amenable number.
9761 is a deficient number, since it is larger than the sum of its proper divisors (271).
9761 is a wasteful number, since it uses less digits than its factorization.
9761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 270.
The product of its digits is 378, while the sum is 23.
The square root of 9761 is about 98.7977732543. The cubic root of 9761 is about 21.3713244481.
The spelling of 9761 in words is "nine thousand, seven hundred sixty-one".
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