13456689 has 8 divisors (see below), whose sum is σ = 17959200. Its totient is φ = 8962656.

The previous prime is 13456687. The next prime is 13456691. The reversal of 13456689 is 98665431.

13456689 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 (13456687) and next prime (13456691).

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

It is not a de Polignac number, because 13456689 - 2¹ = 13456687 is a prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 13456689.

It is not an unprimeable number, because it can be changed into a prime (13456687) 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, 5229 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (2244900).

Almost surely, 2^13456689 is an apocalyptic number.

It is an amenable number.

13456689 is a deficient number, since it is larger than the sum of its proper divisors (4502511).

13456689 is a wasteful number, since it uses less digits than its factorization.

13456689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its digits is 155520, while the sum is 42.

The square root of 13456689 is about 3668.3359987875. The cubic root of 13456689 is about 237.8552482319.

The spelling of 13456689 in words is "thirteen million, four hundred fifty-six thousand, six hundred eighty-nine".