11639289 has 8 divisors (see below), whose sum is σ = 15569280. Its totient is φ = 7734416.

The previous prime is 11639261. The next prime is 11639293. The reversal of 11639289 is 98293611.

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

It is a cyclic number.

It is not a de Polignac number, because 11639289 - 2⁷ = 11639161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11639209) 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, 5169 + ... + 7070.

It is an arithmetic number, because the mean of its divisors is an integer number (1946160).

Almost surely, 2^11639289 is an apocalyptic number.

It is an amenable number.

11639289 is a deficient number, since it is larger than the sum of its proper divisors (3929991).

11639289 is a wasteful number, since it uses less digits than its factorization.

11639289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12559.

The product of its digits is 23328, while the sum is 39.

The square root of 11639289 is about 3411.6402213598. The cubic root of 11639289 is about 226.6255218955.

The spelling of 11639289 in words is "eleven million, six hundred thirty-nine thousand, two hundred eighty-nine".