12649198 has 8 divisors (see below), whose sum is σ = 19257192. Its totient is φ = 6230136.

The previous prime is 12649183. The next prime is 12649199. The reversal of 12649198 is 89194621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12649198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47065 + ... + 47332.

It is an arithmetic number, because the mean of its divisors is an integer number (2407149).

Almost surely, 2^12649198 is an apocalyptic number.

12649198 is a deficient number, since it is larger than the sum of its proper divisors (6607994).

12649198 is an equidigital number, since it uses as much as digits as its factorization.

12649198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94466.

The product of its digits is 31104, while the sum is 40.

The square root of 12649198 is about 3556.5711014965. The cubic root of 12649198 is about 232.9991465398. Note that the first 3 decimals are identical.

The spelling of 12649198 in words is "twelve million, six hundred forty-nine thousand, one hundred ninety-eight".