11685289 has 16 divisors (see below), whose sum is σ = 15073920. Its totient is φ = 8789760.

The previous prime is 11685283. The next prime is 11685301. The reversal of 11685289 is 98258611.

11685289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11685289 - 2⁵ = 11685257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11685283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384 + ... + 4849.

It is an arithmetic number, because the mean of its divisors is an integer number (942120).

Almost surely, 2^11685289 is an apocalyptic number.

It is an amenable number.

11685289 is a deficient number, since it is larger than the sum of its proper divisors (3388631).

11685289 is a wasteful number, since it uses less digits than its factorization.

11685289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its digits is 34560, while the sum is 40.

The square root of 11685289 is about 3418.3751988335. The cubic root of 11685289 is about 226.9236807356.

The spelling of 11685289 in words is "eleven million, six hundred eighty-five thousand, two hundred eighty-nine".