9093521 has 4 divisors (see below), whose sum is σ = 9628452. Its totient is φ = 8558592.

The previous prime is 9093503. The next prime is 9093523. The reversal of 9093521 is 1253909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4080400 + 5013121 = 2020^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 9093521 - 2²² = 4899217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9093523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267440 + ... + 267473.

It is an arithmetic number, because the mean of its divisors is an integer number (2407113).

Almost surely, 2^9093521 is an apocalyptic number.

It is an amenable number.

9093521 is a deficient number, since it is larger than the sum of its proper divisors (534931).

9093521 is a wasteful number, since it uses less digits than its factorization.

9093521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534930.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 9093521 is about 3015.5465507931. The cubic root of 9093521 is about 208.7263881405.

The spelling of 9093521 in words is "nine million, ninety-three thousand, five hundred twenty-one".