12198647 has 8 divisors (see below), whose sum is σ = 12658800. Its totient is φ = 11741184.

The previous prime is 12198631. The next prime is 12198649. The reversal of 12198647 is 74689121.

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 12198647 - 2⁴ = 12198631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12198647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198649) 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, 15479 + ... + 16247.

It is an arithmetic number, because the mean of its divisors is an integer number (1582350).

Almost surely, 2^12198647 is an apocalyptic number.

12198647 is a deficient number, since it is larger than the sum of its proper divisors (460153).

12198647 is an equidigital number, since it uses as much as digits as its factorization.

12198647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its digits is 24192, while the sum is 38.

The square root of 12198647 is about 3492.6561525578. The cubic root of 12198647 is about 230.1992413427.

The spelling of 12198647 in words is "twelve million, one hundred ninety-eight thousand, six hundred forty-seven".