13478289 has 8 divisors (see below), whose sum is σ = 19604832. Its totient is φ = 8168640.

The previous prime is 13478281. The next prime is 13478291. The reversal of 13478289 is 98287431.

13478289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13478289 - 2³ = 13478281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13478289.

It is not an unprimeable number, because it can be changed into a prime (13478281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204184 + ... + 204249.

It is an arithmetic number, because the mean of its divisors is an integer number (2450604).

Almost surely, 2^13478289 is an apocalyptic number.

It is an amenable number.

13478289 is a deficient number, since it is larger than the sum of its proper divisors (6126543).

13478289 is a wasteful number, since it uses less digits than its factorization.

13478289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408447.

The product of its digits is 96768, while the sum is 42.

The square root of 13478289 is about 3671.2789324703. The cubic root of 13478289 is about 237.9824446247.

The spelling of 13478289 in words is "thirteen million, four hundred seventy-eight thousand, two hundred eighty-nine".