9115643 has 4 divisors (see below), whose sum is σ = 9409728. Its totient is φ = 8821560.

The previous prime is 9115637. The next prime is 9115663. The reversal of 9115643 is 3465119.

9115643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3465119 = 7 ⋅495017.

It is a cyclic number.

It is not a de Polignac number, because 9115643 - 2¹⁰ = 9114619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9115633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146996 + ... + 147057.

It is an arithmetic number, because the mean of its divisors is an integer number (2352432).

Almost surely, 2^9115643 is an apocalyptic number.

9115643 is a deficient number, since it is larger than the sum of its proper divisors (294085).

9115643 is a wasteful number, since it uses less digits than its factorization.

9115643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294084.

The product of its digits is 3240, while the sum is 29.

The square root of 9115643 is about 3019.2123144953. The cubic root of 9115643 is about 208.8955087665.

The spelling of 9115643 in words is "nine million, one hundred fifteen thousand, six hundred forty-three".