12979198 has 4 divisors (see below), whose sum is σ = 19468800. Its totient is φ = 6489598.

The previous prime is 12979159. The next prime is 12979237. The reversal of 12979198 is 89197921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12979159) and next prime (12979237).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244798 + ... + 3244801.

It is an arithmetic number, because the mean of its divisors is an integer number (4867200).

Almost surely, 2^12979198 is an apocalyptic number.

12979198 is a deficient number, since it is larger than the sum of its proper divisors (6489602).

12979198 is an equidigital number, since it uses as much as digits as its factorization.

12979198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489601.

The product of its digits is 81648, while the sum is 46.

The square root of 12979198 is about 3602.6654021710. The cubic root of 12979198 is about 235.0079852425.

The spelling of 12979198 in words is "twelve million, nine hundred seventy-nine thousand, one hundred ninety-eight".