12198439 has 8 divisors (see below), whose sum is σ = 13495680. Its totient is φ = 10932600.

The previous prime is 12198421. The next prime is 12198467. The reversal of 12198439 is 93489121.

12198439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12198439 - 2²³ = 3809831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12198398 and 12198407.

It is a congruent number.

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, 7029 + ... + 8590.

It is an arithmetic number, because the mean of its divisors is an integer number (1686960).

Almost surely, 2^12198439 is an apocalyptic number.

12198439 is a deficient number, since it is larger than the sum of its proper divisors (1297241).

12198439 is a wasteful number, since it uses less digits than its factorization.

12198439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15701.

The product of its digits is 15552, while the sum is 37.

The square root of 12198439 is about 3492.6263756663. The cubic root of 12198439 is about 230.1979329540.

The spelling of 12198439 in words is "twelve million, one hundred ninety-eight thousand, four hundred thirty-nine".