11791688 has 8 divisors (see below), whose sum is σ = 22109430. Its totient is φ = 5895840.

The previous prime is 11791673. The next prime is 11791691. The reversal of 11791688 is 88619711.

It can be written as a sum of positive squares in only one way, i.e., 11276164 + 515524 = 3358^2 + 718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 736973 + ... + 736988.

Almost surely, 2^11791688 is an apocalyptic number.

It is an amenable number.

11791688 is a deficient number, since it is larger than the sum of its proper divisors (10317742).

11791688 is a wasteful number, since it uses less digits than its factorization.

11791688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473967 (or 1473963 counting only the distinct ones).

The product of its digits is 24192, while the sum is 41.

The square root of 11791688 is about 3433.9027359551. The cubic root of 11791688 is about 227.6103429623.

The spelling of 11791688 in words is "eleven million, seven hundred ninety-one thousand, six hundred eighty-eight".