9729198 has 12 divisors (see below), whose sum is σ = 21079968. Its totient is φ = 3243060.

The previous prime is 9729193. The next prime is 9729211. The reversal of 9729198 is 8919279.

9729198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270238 + ... + 270273.

It is an arithmetic number, because the mean of its divisors is an integer number (1756664).

Almost surely, 2^9729198 is an apocalyptic number.

9729198 is an abundant number, since it is smaller than the sum of its proper divisors (11350770).

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

9729198 is a wasteful number, since it uses less digits than its factorization.

9729198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540519 (or 540516 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 9729198 is about 3119.1662347493. The cubic root of 9729198 is about 213.4808945457.

The spelling of 9729198 in words is "nine million, seven hundred twenty-nine thousand, one hundred ninety-eight".