11711489 has 4 divisors (see below), whose sum is σ = 11832324. Its totient is φ = 11590656.

The previous prime is 11711477. The next prime is 11711501. The reversal of 11711489 is 98411711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98411711 = 2131 ⋅46181.

It is an interprime number because it is at equal distance from previous prime (11711477) and next prime (11711501).

It can be written as a sum of positive squares in 2 ways, for example, as 8410000 + 3301489 = 2900^2 + 1817^2 .

It is a cyclic number.

It is not a de Polignac number, because 11711489 - 2⁴ = 11711473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11711449) 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, 60272 + ... + 60465.

It is an arithmetic number, because the mean of its divisors is an integer number (2958081).

Almost surely, 2^11711489 is an apocalyptic number.

It is an amenable number.

11711489 is a deficient number, since it is larger than the sum of its proper divisors (120835).

11711489 is an equidigital number, since it uses as much as digits as its factorization.

11711489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120834.

The product of its digits is 2016, while the sum is 32.

The square root of 11711489 is about 3422.2052831471. The cubic root of 11711489 is about 227.0931520112.

The spelling of 11711489 in words is "eleven million, seven hundred eleven thousand, four hundred eighty-nine".