13430447 has 2 divisors, whose sum is σ = 13430448. Its totient is φ = 13430446.

The previous prime is 13430441. The next prime is 13430449. The reversal of 13430447 is 74403431.

It is a strong prime.

It is an emirp because it is prime and its reverse (74403431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13430447 - 2⁶ = 13430383 is a prime.

Together with 13430449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13430441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715223 + 6715224.

It is an arithmetic number, because the mean of its divisors is an integer number (6715224).

Almost surely, 2^13430447 is an apocalyptic number.

13430447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13430447 is an equidigital number, since it uses as much as digits as its factorization.

13430447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 13430447 is about 3664.7574271703. The cubic root of 13430447 is about 237.7005331253.

Adding to 13430447 its reverse (74403431), we get a palindrome (87833878).

The spelling of 13430447 in words is "thirteen million, four hundred thirty thousand, four hundred forty-seven".