9798391 has 8 divisors (see below), whose sum is σ = 10289664. Its totient is φ = 9312600.

The previous prime is 9798379. The next prime is 9798403. The reversal of 9798391 is 1938979.

9798391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9798379) and next prime (9798403).

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

It is a cyclic number.

It is not a de Polignac number, because 9798391 - 2⁵ = 9798359 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 (9798301) 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 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1286208).

Almost surely, 2^9798391 is an apocalyptic number.

9798391 is a deficient number, since it is larger than the sum of its proper divisors (491273).

9798391 is a wasteful number, since it uses less digits than its factorization.

9798391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741.

The product of its digits is 122472, while the sum is 46.

The square root of 9798391 is about 3130.2381698523. The cubic root of 9798391 is about 213.9857838403.

The spelling of 9798391 in words is "nine million, seven hundred ninety-eight thousand, three hundred ninety-one".