9117641 has 4 divisors (see below), whose sum is σ = 9819012. Its totient is φ = 8416272.

The previous prime is 9117613. The next prime is 9117649. The reversal of 9117641 is 1467119.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1467119 = 607 ⋅2417.

It can be written as a sum of positive squares in 2 ways, for example, as 2042041 + 7075600 = 1429^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 9117641 - 2¹⁰ = 9116617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9117649) 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, 350666 + ... + 350691.

It is an arithmetic number, because the mean of its divisors is an integer number (2454753).

Almost surely, 2^9117641 is an apocalyptic number.

It is an amenable number.

9117641 is a deficient number, since it is larger than the sum of its proper divisors (701371).

9117641 is a wasteful number, since it uses less digits than its factorization.

9117641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701370.

The product of its digits is 1512, while the sum is 29.

The square root of 9117641 is about 3019.5431773697. The cubic root of 9117641 is about 208.9107698124.

The spelling of 9117641 in words is "nine million, one hundred seventeen thousand, six hundred forty-one".