9117385 has 8 divisors (see below), whose sum is σ = 10999296. Its totient is φ = 7254960.

The previous prime is 9117343. The next prime is 9117391. The reversal of 9117385 is 5837119.

It is a happy number.

9117385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9117385 - 2⁷ = 9117257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9117385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3819 + ... + 5728.

It is an arithmetic number, because the mean of its divisors is an integer number (1374912).

Almost surely, 2^9117385 is an apocalyptic number.

9117385 is the 1910-th heptagonal number.

It is an amenable number.

9117385 is a deficient number, since it is larger than the sum of its proper divisors (1881911).

9117385 is a wasteful number, since it uses less digits than its factorization.

9117385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9743.

The product of its digits is 7560, while the sum is 34.

The square root of 9117385 is about 3019.5007865540. The cubic root of 9117385 is about 208.9088145677.

It can be divided in two parts, 911738 and 5, that multiplied together give a triangular number (4558690 = T₃₀₁₉).

The spelling of 9117385 in words is "nine million, one hundred seventeen thousand, three hundred eighty-five".