9473521 has 4 divisors (see below), whose sum is σ = 9479844. Its totient is φ = 9467200.

The previous prime is 9473491. The next prime is 9473531. The reversal of 9473521 is 1253749.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1253749 = 7 ⋅179107.

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 6305121 = 1780^2 + 2511^2 .

It is a cyclic number.

It is not a de Polignac number, because 9473521 - 2¹³ = 9465329 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9473531) 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, 501 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (2369961).

Almost surely, 2^9473521 is an apocalyptic number.

It is an amenable number.

9473521 is a deficient number, since it is larger than the sum of its proper divisors (6323).

9473521 is a wasteful number, since it uses less digits than its factorization.

9473521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322.

The product of its digits is 7560, while the sum is 31.

The square root of 9473521 is about 3077.9085431507. The cubic root of 9473521 is about 211.5942235265.

The spelling of 9473521 in words is "nine million, four hundred seventy-three thousand, five hundred twenty-one".