9216239 has 2 divisors, whose sum is σ = 9216240. Its totient is φ = 9216238.

The previous prime is 9216199. The next prime is 9216241. The reversal of 9216239 is 9326129.

9216239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9216239 - 2¹⁶ = 9150703 is a prime.

It is a super-2 number, since 2×9216239² = 169878122610242, which contains 22 as substring.

Together with 9216241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9216299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4608119 + 4608120.

It is an arithmetic number, because the mean of its divisors is an integer number (4608120).

Almost surely, 2^9216239 is an apocalyptic number.

9216239 is a deficient number, since it is larger than the sum of its proper divisors (1).

9216239 is an equidigital number, since it uses as much as digits as its factorization.

9216239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 9216239 is about 3035.8259172752. The cubic root of 9216239 is about 209.6611238972.

The spelling of 9216239 in words is "nine million, two hundred sixteen thousand, two hundred thirty-nine".