11891106 has 12 divisors (see below), whose sum is σ = 25764102. Its totient is φ = 3963696.

The previous prime is 11891083. The next prime is 11891111. The reversal of 11891106 is 60119811.

11891106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11840481 + 50625 = 3441^2 + 225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11891106.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330291 + ... + 330326.

Almost surely, 2^11891106 is an apocalyptic number.

11891106 is an abundant number, since it is smaller than the sum of its proper divisors (13872996).

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

11891106 is a wasteful number, since it uses less digits than its factorization.

11891106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660625 (or 660622 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 27.

The square root of 11891106 is about 3448.3483002736. The cubic root of 11891106 is about 228.2482291870.

The spelling of 11891106 in words is "eleven million, eight hundred ninety-one thousand, one hundred six".