9798215 has 8 divisors (see below), whose sum is σ = 13437600. Its totient is φ = 6718752.

The previous prime is 9798211. The next prime is 9798227. The reversal of 9798215 is 5128979.

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 9798215 - 2² = 9798211 is a prime.

It is a super-3 number, since 3×9798215³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9798211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139940 + ... + 140009.

It is an arithmetic number, because the mean of its divisors is an integer number (1679700).

Almost surely, 2^9798215 is an apocalyptic number.

9798215 is a deficient number, since it is larger than the sum of its proper divisors (3639385).

9798215 is a wasteful number, since it uses less digits than its factorization.

9798215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279961.

The product of its digits is 45360, while the sum is 41.

The square root of 9798215 is about 3130.2100568492. The cubic root of 9798215 is about 213.9845026190.

The spelling of 9798215 in words is "nine million, seven hundred ninety-eight thousand, two hundred fifteen".