9493213 has 4 divisors (see below), whose sum is σ = 9506268. Its totient is φ = 9480160.

The previous prime is 9493151. The next prime is 9493241. The reversal of 9493213 is 3123949.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3123949 = 47 ⋅66467.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 5257849 = 2058^2 + 2293^2 .

It is a cyclic number.

It is not a de Polignac number, because 9493213 - 2¹⁷ = 9362141 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9493313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5368 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (2376567).

Almost surely, 2^9493213 is an apocalyptic number.

It is an amenable number.

9493213 is a deficient number, since it is larger than the sum of its proper divisors (13055).

9493213 is a wasteful number, since it uses less digits than its factorization.

9493213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13054.

The product of its digits is 5832, while the sum is 31.

The square root of 9493213 is about 3081.1058079852. The cubic root of 9493213 is about 211.7407311714.

The spelling of 9493213 in words is "nine million, four hundred ninety-three thousand, two hundred thirteen".