12349387 has 2 divisors, whose sum is σ = 12349388. Its totient is φ = 12349386.

The previous prime is 12349357. The next prime is 12349397. The reversal of 12349387 is 78394321.

12349387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78394321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12349387 is a prime.

It is a super-3 number, since 3×12349387³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12349307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6174693 + 6174694.

It is an arithmetic number, because the mean of its divisors is an integer number (6174694).

Almost surely, 2^12349387 is an apocalyptic number.

12349387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12349387 is an equidigital number, since it uses as much as digits as its factorization.

12349387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 12349387 is about 3514.1694609111. The cubic root of 12349387 is about 231.1435612428.

The spelling of 12349387 in words is "twelve million, three hundred forty-nine thousand, three hundred eighty-seven".