9168385 has 4 divisors (see below), whose sum is σ = 11002068. Its totient is φ = 7334704.

The previous prime is 9168371. The next prime is 9168391. The reversal of 9168385 is 5838619.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5838619 = 23 ⋅253853.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 1937664 = 2689^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 9168385 - 2¹⁷ = 9037313 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916834 + ... + 916843.

It is an arithmetic number, because the mean of its divisors is an integer number (2750517).

Almost surely, 2^9168385 is an apocalyptic number.

It is an amenable number.

9168385 is a deficient number, since it is larger than the sum of its proper divisors (1833683).

9168385 is a wasteful number, since it uses less digits than its factorization.

9168385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833682.

The product of its digits is 51840, while the sum is 40.

The square root of 9168385 is about 3027.9341142105. The cubic root of 9168385 is about 209.2976155697.

The spelling of 9168385 in words is "nine million, one hundred sixty-eight thousand, three hundred eighty-five".