12198823 has 8 divisors (see below), whose sum is σ = 15014048. Its totient is φ = 9651744.

The previous prime is 12198793. The next prime is 12198827. The reversal of 12198823 is 32889121.

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 12198823 - 2¹³ = 12190631 is a prime.

It is a super-2 number, since 2×12198823² = 297622565170658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66936 + ... + 67117.

It is an arithmetic number, because the mean of its divisors is an integer number (1876756).

Almost surely, 2^12198823 is an apocalyptic number.

12198823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12198823 is a deficient number, since it is larger than the sum of its proper divisors (2815225).

12198823 is a wasteful number, since it uses less digits than its factorization.

12198823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134073.

The product of its digits is 6912, while the sum is 34.

The square root of 12198823 is about 3492.6813481908. The cubic root of 12198823 is about 230.2003484292.

The spelling of 12198823 in words is "twelve million, one hundred ninety-eight thousand, eight hundred twenty-three".