11456889 has 4 divisors (see below), whose sum is σ = 15275856. Its totient is φ = 7637924.

The previous prime is 11456873. The next prime is 11456897. The reversal of 11456889 is 98865411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98865411 = 3 ⋅32955137.

It is a cyclic number.

It is not a de Polignac number, because 11456889 - 2⁴ = 11456873 is a prime.

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 11456889.

It is not an unprimeable number, because it can be changed into a prime (11456849) 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, 1909479 + ... + 1909484.

It is an arithmetic number, because the mean of its divisors is an integer number (3818964).

Almost surely, 2^11456889 is an apocalyptic number.

It is an amenable number.

11456889 is a deficient number, since it is larger than the sum of its proper divisors (3818967).

11456889 is an equidigital number, since it uses as much as digits as its factorization.

11456889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818966.

The product of its digits is 69120, while the sum is 42.

The square root of 11456889 is about 3384.8026530361. The cubic root of 11456889 is about 225.4354628385.

The spelling of 11456889 in words is "eleven million, four hundred fifty-six thousand, eight hundred eighty-nine".