13389447 has 8 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 8910200.

The previous prime is 13389437. The next prime is 13389457. The reversal of 13389447 is 74498331.

13389447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13389437) and next prime (13389457).

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

It is a cyclic number.

It is not a de Polignac number, because 13389447 - 2¹¹ = 13387399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389437) 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, 1929 + ... + 5522.

It is an arithmetic number, because the mean of its divisors is an integer number (2235600).

Almost surely, 2^13389447 is an apocalyptic number.

13389447 is a deficient number, since it is larger than the sum of its proper divisors (4495353).

13389447 is an equidigital number, since it uses as much as digits as its factorization.

13389447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053.

The product of its digits is 72576, while the sum is 39.

The square root of 13389447 is about 3659.1593296822. The cubic root of 13389447 is about 237.4584052734.

The spelling of 13389447 in words is "thirteen million, three hundred eighty-nine thousand, four hundred forty-seven".