9689213 has 2 divisors, whose sum is σ = 9689214. Its totient is φ = 9689212.

The previous prime is 9689189. The next prime is 9689231. The reversal of 9689213 is 3129869.

Together with next prime (9689231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 4481689 = 2282^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 9689213 - 2⁶ = 9689149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9689263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4844606 + 4844607.

It is an arithmetic number, because the mean of its divisors is an integer number (4844607).

Almost surely, 2^9689213 is an apocalyptic number.

It is an amenable number.

9689213 is a deficient number, since it is larger than the sum of its proper divisors (1).

9689213 is an equidigital number, since it uses as much as digits as its factorization.

9689213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 9689213 is about 3112.7500702755. The cubic root of 9689213 is about 213.1880388166.

The spelling of 9689213 in words is "nine million, six hundred eighty-nine thousand, two hundred thirteen".