11656736 has 48 divisors (see below), whose sum is σ = 28252224. Its totient is φ = 4610304.

The previous prime is 11656721. The next prime is 11656759. The reversal of 11656736 is 63765611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11656696 and 11656705.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 911 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (588588).

Almost surely, 2^11656736 is an apocalyptic number.

11656736 is a gapful number since it is divisible by the number (16) 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 11656736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14126112).

11656736 is an abundant number, since it is smaller than the sum of its proper divisors (16595488).

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

11656736 is a wasteful number, since it uses less digits than its factorization.

11656736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4025 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 11656736 is about 3414.1962450920. The cubic root of 11656736 is about 226.7387006732.

The spelling of 11656736 in words is "eleven million, six hundred fifty-six thousand, seven hundred thirty-six".