1163656 has 32 divisors (see below), whose sum is σ = 2399040. Its totient is φ = 525888.

The previous prime is 1163653. The next prime is 1163663. The reversal of 1163656 is 6563611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6885 + ... + 7051.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2^1163656 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 1163656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199520).

1163656 is an abundant number, since it is smaller than the sum of its proper divisors (1235384).

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

1163656 is a wasteful number, since it uses less digits than its factorization.

1163656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 1163656 is about 1078.7288816009. The cubic root of 1163656 is about 105.1820274154.

The spelling of 1163656 in words is "one million, one hundred sixty-three thousand, six hundred fifty-six".