11689747 has 2 divisors, whose sum is σ = 11689748. Its totient is φ = 11689746.

The previous prime is 11689739. The next prime is 11689751. The reversal of 11689747 is 74798611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11689747 - 2³ = 11689739 is a prime.

It is not a weakly prime, because it can be changed into another prime (11689757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844873 + 5844874.

It is an arithmetic number, because the mean of its divisors is an integer number (5844874).

Almost surely, 2^11689747 is an apocalyptic number.

11689747 is a deficient number, since it is larger than the sum of its proper divisors (1).

11689747 is an equidigital number, since it uses as much as digits as its factorization.

11689747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 43.

The square root of 11689747 is about 3419.0272008277. The cubic root of 11689747 is about 226.9525345976.

It can be divided in two parts, 1168974 and 7, that multiplied together give a palindrome (8182818).

The spelling of 11689747 in words is "eleven million, six hundred eighty-nine thousand, seven hundred forty-seven".