11171864 has 32 divisors (see below), whose sum is σ = 23155200. Its totient is φ = 5010720.

The previous prime is 11171861. The next prime is 11171879. The reversal of 11171864 is 46817111.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6149 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (723600).

Almost surely, 2^11171864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11171864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11577600).

11171864 is an abundant number, since it is smaller than the sum of its proper divisors (11983336).

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

11171864 is a wasteful number, since it uses less digits than its factorization.

11171864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its digits is 1344, while the sum is 29.

The square root of 11171864 is about 3342.4338437731. The cubic root of 11171864 is about 223.5502775481.

Adding to 11171864 its reverse (46817111), we get a palindrome (57988975).

The spelling of 11171864 in words is "eleven million, one hundred seventy-one thousand, eight hundred sixty-four".