66473 has 4 divisors (see below), whose sum is σ = 72528.
Its totient is φ = 60420.
The previous prime is 66467. The next prime is 66491. The reversal of 66473 is 37466.
It can be divided in two parts, 664 and 73, that added together give a palindrome (737).
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 a cyclic number.
It is not a de Polignac number, because 66473 - 24 = 66457 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a plaindrome in base 9.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 66473.
It is not an unprimeable number, because it can be changed into a prime (66403) 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, 3011 + ... + 3032.
It is an arithmetic number, because the mean of its divisors is an integer number (18132).
266473 is an apocalyptic number.
It is an amenable number.
66473 is a deficient number, since it is larger than the sum of its proper divisors (6055).
66473 is a wasteful number, since it uses less digits than its factorization.
66473 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6054.
The product of its digits is 3024, while the sum is 26.
The square root of 66473 is about 257.8235830951.
The cubic root of 66473 is about 40.5087112288.
The spelling of 66473 in words is "sixty-six thousand, four hundred seventy-three".