9844991 has 4 divisors (see below), whose sum is σ = 10602312. Its totient is φ = 9087672.

The previous prime is 9844987. The next prime is 9844993. The reversal of 9844991 is 1994489.

9844991 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: 1994489 = 7 ⋅284927.

It is a cyclic number.

It is not a de Polignac number, because 9844991 - 2² = 9844987 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 (9844993) 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, 378641 + ... + 378666.

It is an arithmetic number, because the mean of its divisors is an integer number (2650578).

Almost surely, 2^9844991 is an apocalyptic number.

9844991 is a deficient number, since it is larger than the sum of its proper divisors (757321).

9844991 is a wasteful number, since it uses less digits than its factorization.

9844991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757320.

The product of its digits is 93312, while the sum is 44.

The square root of 9844991 is about 3137.6728637638. The cubic root of 9844991 is about 214.3244779186.

The spelling of 9844991 in words is "nine million, eight hundred forty-four thousand, nine hundred ninety-one".