12398671 has 2 divisors, whose sum is σ = 12398672. Its totient is φ = 12398670.

The previous prime is 12398669. The next prime is 12398693. The reversal of 12398671 is 17689321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12398671 - 2¹ = 12398669 is a prime.

Together with 12398669, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12398671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12398611) 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 as a sum of consecutive naturals, namely, 6199335 + 6199336.

It is an arithmetic number, because the mean of its divisors is an integer number (6199336).

Almost surely, 2^12398671 is an apocalyptic number.

12398671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12398671 is an equidigital number, since it uses as much as digits as its factorization.

12398671 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12398671 is about 3521.1746619559. The cubic root of 12398671 is about 231.4506361011.

The spelling of 12398671 in words is "twelve million, three hundred ninety-eight thousand, six hundred seventy-one".