12198489 has 8 divisors (see below), whose sum is σ = 16507680. Its totient is φ = 8010816.

The previous prime is 12198479. The next prime is 12198499. The reversal of 12198489 is 98489121.

It is an interprime number because it is at equal distance from previous prime (12198479) and next prime (12198499).

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

It is not a de Polignac number, because 12198489 - 2¹¹ = 12196441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12198489.

It is not an unprimeable number, because it can be changed into a prime (12198479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30144 + ... + 30545.

It is an arithmetic number, because the mean of its divisors is an integer number (2063460).

Almost surely, 2^12198489 is an apocalyptic number.

It is an amenable number.

12198489 is a deficient number, since it is larger than the sum of its proper divisors (4309191).

12198489 is an equidigital number, since it uses as much as digits as its factorization.

12198489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60759.

The product of its digits is 41472, while the sum is 42.

The square root of 12198489 is about 3492.6335335961. The cubic root of 12198489 is about 230.1982474719.

The spelling of 12198489 in words is "twelve million, one hundred ninety-eight thousand, four hundred eighty-nine".