12398429 has 2 divisors, whose sum is σ = 12398430. Its totient is φ = 12398428.

The previous prime is 12398413. The next prime is 12398467. The reversal of 12398429 is 92489321.

It is an a-pointer prime, because the next prime (12398467) can be obtained adding 12398429 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7689529 + 4708900 = 2773^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 12398429 - 2⁴ = 12398413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12398392 and 12398401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12398489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6199214 + 6199215.

It is an arithmetic number, because the mean of its divisors is an integer number (6199215).

Almost surely, 2^12398429 is an apocalyptic number.

It is an amenable number.

12398429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12398429 is an equidigital number, since it uses as much as digits as its factorization.

12398429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 12398429 is about 3521.1402982557. The cubic root of 12398429 is about 231.4491302564.

The spelling of 12398429 in words is "twelve million, three hundred ninety-eight thousand, four hundred twenty-nine".