9813198 has 16 divisors (see below), whose sum is σ = 19731456. Its totient is φ = 3253560.

The previous prime is 9813197. The next prime is 9813211. The reversal of 9813198 is 8913189.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813197) 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, 3136 + ... + 5427.

It is an arithmetic number, because the mean of its divisors is an integer number (1233216).

Almost surely, 2^9813198 is an apocalyptic number.

9813198 is an abundant number, since it is smaller than the sum of its proper divisors (9918258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9813198 is a wasteful number, since it uses less digits than its factorization.

9813198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759.

The product of its digits is 15552, while the sum is 39.

The square root of 9813198 is about 3132.6024324833. The cubic root of 9813198 is about 214.0935189709.

Subtracting from 9813198 its reverse (8913189), we obtain a palindrome (900009).

It can be divided in two parts, 9813 and 198, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 9813198 in words is "nine million, eight hundred thirteen thousand, one hundred ninety-eight".