65473 has 4 divisors (see below), whose sum is σ = 65988. Its totient is φ = 64960.

The previous prime is 65449. The next prime is 65479. The reversal of 65473 is 37456.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28224 + 37249 = 168^2 + 193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65473 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁶ + 5 + 4⁷ + 7⁴ + 3³ .

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 373.

It is an arithmetic number, because the mean of its divisors is an integer number (16497).

2⁶⁵⁴⁷³ is an apocalyptic number.

It is an amenable number.

65473 is a deficient number, since it is larger than the sum of its proper divisors (515).

65473 is a wasteful number, since it uses less digits than its factorization.

65473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514.

The product of its digits is 2520, while the sum is 25.

The square root of 65473 is about 255.8769235394. The cubic root of 65473 is about 40.3045503424.

It can be divided in two parts, 654 and 73, that added together give a palindrome (727).

The spelling of 65473 in words is "sixty-five thousand, four hundred seventy-three".