11171868 has 12 divisors (see below), whose sum is σ = 26067720. Its totient is φ = 3723952.

The previous prime is 11171861. The next prime is 11171879. The reversal of 11171868 is 86817111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171861) 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 3 ways as a sum of consecutive naturals, for example, 465483 + ... + 465506.

It is an arithmetic number, because the mean of its divisors is an integer number (2172310).

Almost surely, 2^11171868 is an apocalyptic number.

It is an amenable number.

11171868 is an abundant number, since it is smaller than the sum of its proper divisors (14895852).

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

11171868 is a wasteful number, since it uses less digits than its factorization.

11171868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930996 (or 930994 counting only the distinct ones).

The product of its digits is 2688, while the sum is 33.

The square root of 11171868 is about 3342.4344421394. The cubic root of 11171868 is about 223.5503042283.

Adding to 11171868 its reverse (86817111), we get a palindrome (97988979).

The spelling of 11171868 in words is "eleven million, one hundred seventy-one thousand, eight hundred sixty-eight".