473521 has 4 divisors (see below), whose sum is σ = 475200. Its totient is φ = 471844.

The previous prime is 473519. The next prime is 473527. The reversal of 473521 is 125374.

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: 125374 = 2 ⋅62687.

It is a cyclic number.

It is not a de Polignac number, because 473521 - 2¹ = 473519 is a prime.

It is a Duffinian number.

473521 is a lucky number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 473492 and 473501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (473527) 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, 301 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2⁴⁷³⁵²¹ is an apocalyptic number.

It is an amenable number.

473521 is a deficient number, since it is larger than the sum of its proper divisors (1679).

473521 is a wasteful number, since it uses less digits than its factorization.

473521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 840, while the sum is 22.

The square root of 473521 is about 688.1286216980. The cubic root of 473521 is about 77.9434720828.

Adding to 473521 its reverse (125374), we get a palindrome (598895).

The spelling of 473521 in words is "four hundred seventy-three thousand, five hundred twenty-one".