11688769 has 4 divisors (see below), whose sum is σ = 12091860. Its totient is φ = 11285680.

The previous prime is 11688751. The next prime is 11688793. The reversal of 11688769 is 96788611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9090225 + 2598544 = 3015^2 + 1612^2 .

It is a cyclic number.

It is not a de Polignac number, because 11688769 - 2¹³ = 11680577 is a prime.

It is a super-2 number, since 2×11688769² = 273254641470722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11688709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201502 + ... + 201559.

It is an arithmetic number, because the mean of its divisors is an integer number (3022965).

Almost surely, 2^11688769 is an apocalyptic number.

It is an amenable number.

11688769 is a deficient number, since it is larger than the sum of its proper divisors (403091).

11688769 is an equidigital number, since it uses as much as digits as its factorization.

11688769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403090.

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

The square root of 11688769 is about 3418.8841746979. The cubic root of 11688769 is about 226.9462052399.

The spelling of 11688769 in words is "eleven million, six hundred eighty-eight thousand, seven hundred sixty-nine".