11689687 has 2 divisors, whose sum is σ = 11689688. Its totient is φ = 11689686.

The previous prime is 11689673. The next prime is 11689703. The reversal of 11689687 is 78698611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11689687 - 2¹¹ = 11687639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11689087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844843 + 5844844.

It is an arithmetic number, because the mean of its divisors is an integer number (5844844).

Almost surely, 2^11689687 is an apocalyptic number.

11689687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11689687 is an equidigital number, since it uses as much as digits as its factorization.

11689687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 11689687 is about 3419.0184263908. The cubic root of 11689687 is about 226.9521463036.

The spelling of 11689687 in words is "eleven million, six hundred eighty-nine thousand, six hundred eighty-seven".