13447089 has 12 divisors (see below), whose sum is σ = 19875856. Its totient is φ = 8755992.

The previous prime is 13447073. The next prime is 13447121. The reversal of 13447089 is 98074431.

It is a happy number.

It is not a de Polignac number, because 13447089 - 2⁴ = 13447073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13447069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16987 + ... + 17760.

Almost surely, 2^13447089 is an apocalyptic number.

It is an amenable number.

13447089 is a deficient number, since it is larger than the sum of its proper divisors (6428767).

13447089 is a wasteful number, since it uses less digits than its factorization.

13447089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34796 (or 34793 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13447089 is about 3667.0272701468. The cubic root of 13447089 is about 237.7986728095.

The spelling of 13447089 in words is "thirteen million, four hundred forty-seven thousand, eighty-nine".