11456689 has 4 divisors (see below), whose sum is σ = 11497456. Its totient is φ = 11415924.

The previous prime is 11456681. The next prime is 11456707. The reversal of 11456689 is 98665411.

11456689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11456689 - 2³ = 11456681 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11456681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19959 + ... + 20524.

It is an arithmetic number, because the mean of its divisors is an integer number (2874364).

Almost surely, 2^11456689 is an apocalyptic number.

It is an amenable number.

11456689 is a deficient number, since it is larger than the sum of its proper divisors (40767).

11456689 is an equidigital number, since it uses as much as digits as its factorization.

11456689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40766.

The product of its digits is 51840, while the sum is 40.

The square root of 11456689 is about 3384.7731090872. The cubic root of 11456689 is about 225.4341510410.

The spelling of 11456689 in words is "eleven million, four hundred fifty-six thousand, six hundred eighty-nine".