11705688 has 32 divisors (see below), whose sum is σ = 32516400. Its totient is φ = 3901824.

The previous prime is 11705663. The next prime is 11705711. The reversal of 11705688 is 88650711.

11705688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26881 + ... + 27312.

Almost surely, 2^11705688 is an apocalyptic number.

11705688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11705688 is an abundant number, since it is smaller than the sum of its proper divisors (20810712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11705688 is a wasteful number, since it uses less digits than its factorization.

11705688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54208 (or 54198 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 11705688 is about 3421.3576252710. The cubic root of 11705688 is about 227.0556508035.

The spelling of 11705688 in words is "eleven million, seven hundred five thousand, six hundred eighty-eight".