12879198 has 24 divisors (see below), whose sum is σ = 28806336. Its totient is φ = 4154400.

The previous prime is 12879179. The next prime is 12879199. The reversal of 12879198 is 89197821.

It is a super-2 number, since 2×12879198² = 331747482246408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879199) 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 11 ways as a sum of consecutive naturals, for example, 10983 + ... + 12098.

It is an arithmetic number, because the mean of its divisors is an integer number (1200264).

Almost surely, 2^12879198 is an apocalyptic number.

12879198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12879198 is an abundant number, since it is smaller than the sum of its proper divisors (15927138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12879198 is a wasteful number, since it uses less digits than its factorization.

12879198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23120 (or 23117 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 12879198 is about 3588.7599529643. The cubic root of 12879198 is about 234.4028781772.

The spelling of 12879198 in words is "twelve million, eight hundred seventy-nine thousand, one hundred ninety-eight".