9724198 has 8 divisors (see below), whose sum is σ = 15912360. Its totient is φ = 4420080.

The previous prime is 9724171. The next prime is 9724201. The reversal of 9724198 is 8914279.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9724198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220983 + ... + 221026.

It is an arithmetic number, because the mean of its divisors is an integer number (1989045).

Almost surely, 2^9724198 is an apocalyptic number.

9724198 is a deficient number, since it is larger than the sum of its proper divisors (6188162).

9724198 is a wasteful number, since it uses less digits than its factorization.

9724198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442022.

The product of its digits is 36288, while the sum is 40.

The square root of 9724198 is about 3118.3646355101. The cubic root of 9724198 is about 213.4443177940. Note that the first 3 decimals are identical.

The spelling of 9724198 in words is "nine million, seven hundred twenty-four thousand, one hundred ninety-eight".