9273213 has 6 divisors (see below), whose sum is σ = 13394654. Its totient is φ = 6182136.

The previous prime is 9273203. The next prime is 9273217. The reversal of 9273213 is 3123729.

It can be written as a sum of positive squares in only one way, i.e., 5184729 + 4088484 = 2277^2 + 2022^2 .

It is not a de Polignac number, because 9273213 - 2⁵ = 9273181 is a prime.

It is a Duffinian number.

9273213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9273217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 515170 + ... + 515187.

Almost surely, 2^9273213 is an apocalyptic number.

It is an amenable number.

9273213 is a deficient number, since it is larger than the sum of its proper divisors (4121441).

9273213 is a wasteful number, since it uses less digits than its factorization.

9273213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030363 (or 1030360 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 9273213 is about 3045.1950676435. The cubic root of 9273213 is about 210.0922723755.

The spelling of 9273213 in words is "nine million, two hundred seventy-three thousand, two hundred thirteen".