11891116 has 24 divisors (see below), whose sum is σ = 21304304. Its totient is φ = 5806080.

The previous prime is 11891111. The next prime is 11891119. The reversal of 11891116 is 61119811.

It is not an unprimeable number, because it can be changed into a prime (11891111) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 56251 + ... + 56461.

Almost surely, 2^11891116 is an apocalyptic number.

It is an amenable number.

11891116 is a deficient number, since it is larger than the sum of its proper divisors (9413188).

11891116 is a wasteful number, since it uses less digits than its factorization.

11891116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

The product of its digits is 432, while the sum is 28.

The square root of 11891116 is about 3448.3497502429. The cubic root of 11891116 is about 228.2482931699.

The spelling of 11891116 in words is "eleven million, eight hundred ninety-one thousand, one hundred sixteen".