11928171 has 16 divisors (see below), whose sum is σ = 16738848. Its totient is φ = 7545600.

The previous prime is 11928151. The next prime is 11928173. The reversal of 11928171 is 17182911.

It is not a de Polignac number, because 11928171 - 2⁵ = 11928139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11928173) 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 15 ways as a sum of consecutive naturals, for example, 3241 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (1046178).

Almost surely, 2^11928171 is an apocalyptic number.

11928171 is a deficient number, since it is larger than the sum of its proper divisors (4810677).

11928171 is a wasteful number, since it uses less digits than its factorization.

11928171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702.

The product of its digits is 1008, while the sum is 30.

The square root of 11928171 is about 3453.7184309089. The cubic root of 11928171 is about 228.4851358225.

The spelling of 11928171 in words is "eleven million, nine hundred twenty-eight thousand, one hundred seventy-one".