11643768 has 48 divisors (see below), whose sum is σ = 32081400. Its totient is φ = 3814080.

The previous prime is 11643763. The next prime is 11643769. The reversal of 11643768 is 86734611.

11643768 is a `hidden beast` number, since 1 + 1 + 643 + 7 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643763) 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 11 ways as a sum of consecutive naturals, for example, 2878 + ... + 5618.

Almost surely, 2^11643768 is an apocalyptic number.

11643768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11643768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16040700).

11643768 is an abundant number, since it is smaller than the sum of its proper divisors (20437632).

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

11643768 is a wasteful number, since it uses less digits than its factorization.

11643768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812 (or 2805 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 11643768 is about 3412.2965873441. The cubic root of 11643768 is about 226.6545879761.

The spelling of 11643768 in words is "eleven million, six hundred forty-three thousand, seven hundred sixty-eight".