11851687 has 8 divisors (see below), whose sum is σ = 12509360. Its totient is φ = 11197440.

The previous prime is 11851681. The next prime is 11851753. The reversal of 11851687 is 78615811.

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 11851687 - 2⁷ = 11851559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11851681) 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, 9703 + ... + 10855.

It is an arithmetic number, because the mean of its divisors is an integer number (1563670).

Almost surely, 2^11851687 is an apocalyptic number.

11851687 is a deficient number, since it is larger than the sum of its proper divisors (657673).

11851687 is a wasteful number, since it uses less digits than its factorization.

11851687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its digits is 13440, while the sum is 37.

The square root of 11851687 is about 3442.6279206443. The cubic root of 11851687 is about 227.9957357877.

The spelling of 11851687 in words is "eleven million, eight hundred fifty-one thousand, six hundred eighty-seven".