9307213 has 2 divisors, whose sum is σ = 9307214. Its totient is φ = 9307212.

The previous prime is 9307189. The next prime is 9307219. The reversal of 9307213 is 3127039.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8538084 + 769129 = 2922^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 9307213 - 2¹³ = 9299021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9307219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4653606 + 4653607.

It is an arithmetic number, because the mean of its divisors is an integer number (4653607).

Almost surely, 2^9307213 is an apocalyptic number.

It is an amenable number.

9307213 is a deficient number, since it is larger than the sum of its proper divisors (1).

9307213 is an equidigital number, since it uses as much as digits as its factorization.

9307213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 9307213 is about 3050.7725251156. The cubic root of 9307213 is about 210.3487251985.

The spelling of 9307213 in words is "nine million, three hundred seven thousand, two hundred thirteen".