11688943 has 16 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 9525600.

The previous prime is 11688923. The next prime is 11688959. The reversal of 11688943 is 34988611.

It is a de Polignac number, because none of the positive numbers 2^k-11688943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11688896 and 11688905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11688913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14008 + ... + 14818.

It is an arithmetic number, because the mean of its divisors is an integer number (876960).

Almost surely, 2^11688943 is an apocalyptic number.

11688943 is a deficient number, since it is larger than the sum of its proper divisors (2342417).

11688943 is an equidigital number, since it uses as much as digits as its factorization.

11688943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918.

The product of its digits is 41472, while the sum is 40.

The square root of 11688943 is about 3418.9096215022. The cubic root of 11688943 is about 226.9473313478.

The spelling of 11688943 in words is "eleven million, six hundred eighty-eight thousand, nine hundred forty-three".