11163906 has 112 divisors (see below), whose sum is σ = 29379840. Its totient is φ = 3149280.

The previous prime is 11163877. The next prime is 11163907. The reversal of 11163906 is 60936111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11163906.

It is not an unprimeable number, because it can be changed into a prime (11163907) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 360111 + ... + 360141.

It is an arithmetic number, because the mean of its divisors is an integer number (262320).

Almost surely, 2^11163906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11163906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14689920).

11163906 is an abundant number, since it is smaller than the sum of its proper divisors (18215934).

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

11163906 is a wasteful number, since it uses less digits than its factorization.

11163906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 11163906 is about 3341.2431818112. The cubic root of 11163906 is about 223.4971847760.

The spelling of 11163906 in words is "eleven million, one hundred sixty-three thousand, nine hundred six".