13478497 has 2 divisors, whose sum is σ = 13478498. Its totient is φ = 13478496.

The previous prime is 13478473. The next prime is 13478503. The reversal of 13478497 is 79487431.

13478497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10523536 + 2954961 = 3244^2 + 1719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13478497 is a prime.

It is not a weakly prime, because it can be changed into another prime (13478447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6739248 + 6739249.

It is an arithmetic number, because the mean of its divisors is an integer number (6739249).

Almost surely, 2^13478497 is an apocalyptic number.

It is an amenable number.

13478497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13478497 is an equidigital number, since it uses as much as digits as its factorization.

13478497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 13478497 is about 3671.3072603638. The cubic root of 13478497 is about 237.9836688180.

The spelling of 13478497 in words is "thirteen million, four hundred seventy-eight thousand, four hundred ninety-seven".