11813289 has 8 divisors (see below), whose sum is σ = 16135392. Its totient is φ = 7683360.

The previous prime is 11813287. The next prime is 11813293. The reversal of 11813289 is 98231811.

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

It is not a de Polignac number, because 11813289 - 2¹ = 11813287 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11813281) 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, 47899 + ... + 48144.

It is an arithmetic number, because the mean of its divisors is an integer number (2016924).

Almost surely, 2^11813289 is an apocalyptic number.

It is an amenable number.

11813289 is a deficient number, since it is larger than the sum of its proper divisors (4322103).

11813289 is an equidigital number, since it uses as much as digits as its factorization.

11813289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96087.

The product of its digits is 3456, while the sum is 33.

The square root of 11813289 is about 3437.0465519105. The cubic root of 11813289 is about 227.7492433994.

The spelling of 11813289 in words is "eleven million, eight hundred thirteen thousand, two hundred eighty-nine".