82461 has 4 divisors (see below), whose sum is σ = 109952. Its totient is φ = 54972.
The previous prime is 82457. The next prime is 82463. The reversal of 82461 is 16428.
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.
It is not a de Polignac number, because 82461 - 22 = 82457 is a prime.
It is a D-number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (82463) 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 in 3 ways as a sum of consecutive naturals, for example, 13741 + ... + 13746.
It is an arithmetic number, because the mean of its divisors is an integer number (27488).
282461 is an apocalyptic number.
It is an amenable number.
82461 is a deficient number, since it is larger than the sum of its proper divisors (27491).
82461 is a wasteful number, since it uses less digits than its factorization.
82461 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27490.
The product of its digits is 384, while the sum is 21.
The square root of 82461 is about 287.1602340158. The cubic root of 82461 is about 43.5260776389.
Adding to 82461 its reverse (16428), we get a palindrome (98889).
The spelling of 82461 in words is "eighty-two thousand, four hundred sixty-one".
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