13454447 has 2 divisors, whose sum is σ = 13454448. Its totient is φ = 13454446.

The previous prime is 13454443. The next prime is 13454449. The reversal of 13454447 is 74445431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13454447 - 2² = 13454443 is a prime.

Together with 13454449, 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 (13454443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727223 + 6727224.

It is an arithmetic number, because the mean of its divisors is an integer number (6727224).

Almost surely, 2^13454447 is an apocalyptic number.

13454447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13454447 is an equidigital number, since it uses as much as digits as its factorization.

13454447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 32.

The square root of 13454447 is about 3668.0303979111. The cubic root of 13454447 is about 237.8420379222.

Adding to 13454447 its reverse (74445431), we get a palindrome (87899878).

The spelling of 13454447 in words is "thirteen million, four hundred fifty-four thousand, four hundred forty-seven".