11787089 has 8 divisors (see below), whose sum is σ = 11954280. Its totient is φ = 11621376.

The previous prime is 11787077. The next prime is 11787121. The reversal of 11787089 is 98078711.

It can be written as a sum of positive squares in 4 ways, for example, as 1600 + 11785489 = 40^2 + 3433^2 .

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 11787089 - 2⁴ = 11787073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11787389) 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, 30107 + ... + 30495.

It is an arithmetic number, because the mean of its divisors is an integer number (1494285).

Almost surely, 2^11787089 is an apocalyptic number.

It is an amenable number.

11787089 is a deficient number, since it is larger than the sum of its proper divisors (167191).

11787089 is a wasteful number, since it uses less digits than its factorization.

11787089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 11787089 is about 3433.2330244246. The cubic root of 11787089 is about 227.5807482149.

The spelling of 11787089 in words is "eleven million, seven hundred eighty-seven thousand, eighty-nine".