13748447 has 2 divisors, whose sum is σ = 13748448. Its totient is φ = 13748446.

The previous prime is 13748443. The next prime is 13748459. The reversal of 13748447 is 74484731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13748447 - 2² = 13748443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13748447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13748443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6874223 + 6874224.

It is an arithmetic number, because the mean of its divisors is an integer number (6874224).

Almost surely, 2^13748447 is an apocalyptic number.

13748447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13748447 is an equidigital number, since it uses as much as digits as its factorization.

13748447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The square root of 13748447 is about 3707.8898311573. The cubic root of 13748447 is about 239.5619730287.

It can be divided in two parts, 137 and 48447, that added together give a palindrome (48584).

The spelling of 13748447 in words is "thirteen million, seven hundred forty-eight thousand, four hundred forty-seven".