11663028 has 108 divisors (see below), whose sum is σ = 33572448. Its totient is φ = 3538080.

The previous prime is 11663011. The next prime is 11663039. The reversal of 11663028 is 82036611.

11663028 is a `hidden beast` number, since 1 + 1 + 6 + 630 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is a junction number, because it is equal to n+sod(n) for n = 11662992 and 11663010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164233 + ... + 164303.

It is an arithmetic number, because the mean of its divisors is an integer number (310856).

Almost surely, 2^11663028 is an apocalyptic number.

11663028 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 11663028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16786224).

11663028 is an abundant number, since it is smaller than the sum of its proper divisors (21909420).

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

11663028 is a wasteful number, since it uses less digits than its factorization.

11663028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 11663028 is about 3415.1175675224. The cubic root of 11663028 is about 226.7794892008.

Adding to 11663028 its reverse (82036611), we get a palindrome (93699639).

The spelling of 11663028 in words is "eleven million, six hundred sixty-three thousand, twenty-eight".