9117239 has 4 divisors (see below), whose sum is σ = 9142056. Its totient is φ = 9092424.

The previous prime is 9117221. The next prime is 9117257. The reversal of 9117239 is 9327119.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9117221) and next prime (9117257).

It is a cyclic number.

It is not a de Polignac number, because 9117239 - 2⁸ = 9116983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9117209) 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, 11849 + ... + 12594.

It is an arithmetic number, because the mean of its divisors is an integer number (2285514).

Almost surely, 2^9117239 is an apocalyptic number.

9117239 is a deficient number, since it is larger than the sum of its proper divisors (24817).

9117239 is a wasteful number, since it uses less digits than its factorization.

9117239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24816.

The product of its digits is 3402, while the sum is 32.

The square root of 9117239 is about 3019.4766102754. The cubic root of 9117239 is about 208.9076994508.

The spelling of 9117239 in words is "nine million, one hundred seventeen thousand, two hundred thirty-nine".