12638197 has 8 divisors (see below), whose sum is σ = 14847840. Its totient is φ = 10605360.

The previous prime is 12638189. The next prime is 12638207. The reversal of 12638197 is 79183621.

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 12638197 - 2³ = 12638189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12638147) 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, 44047 + ... + 44332.

It is an arithmetic number, because the mean of its divisors is an integer number (1855980).

Almost surely, 2^12638197 is an apocalyptic number.

It is an amenable number.

12638197 is a deficient number, since it is larger than the sum of its proper divisors (2209643).

12638197 is a wasteful number, since it uses less digits than its factorization.

12638197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88403.

The product of its digits is 18144, while the sum is 37.

The square root of 12638197 is about 3555.0241911976. The cubic root of 12638197 is about 232.9315805421.

The spelling of 12638197 in words is "twelve million, six hundred thirty-eight thousand, one hundred ninety-seven".