12373729 has 2 divisors, whose sum is σ = 12373730. Its totient is φ = 12373728.

The previous prime is 12373727. The next prime is 12373763. The reversal of 12373729 is 92737321.

It is an a-pointer prime, because the next prime (12373763) can be obtained adding 12373729 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 677329 = 3420^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 12373729 - 2¹ = 12373727 is a prime.

Together with 12373727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12373694 and 12373703.

It is not a weakly prime, because it can be changed into another prime (12373721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6186864 + 6186865.

It is an arithmetic number, because the mean of its divisors is an integer number (6186865).

Almost surely, 2^12373729 is an apocalyptic number.

It is an amenable number.

12373729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12373729 is an equidigital number, since it uses as much as digits as its factorization.

12373729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 34.

The square root of 12373729 is about 3517.6311631551. The cubic root of 12373729 is about 231.2953313616.

The spelling of 12373729 in words is "twelve million, three hundred seventy-three thousand, seven hundred twenty-nine".