11687736 has 64 divisors (see below), whose sum is σ = 31276800. Its totient is φ = 3638880.

The previous prime is 11687699. The next prime is 11687759. The reversal of 11687736 is 63778611.

11687736 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11687694 and 11687703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164581 + ... + 164651.

It is an arithmetic number, because the mean of its divisors is an integer number (488700).

Almost surely, 2^11687736 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 11687736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15638400).

11687736 is an abundant number, since it is smaller than the sum of its proper divisors (19589064).

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

11687736 is an equidigital number, since it uses as much as digits as its factorization.

11687736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 95 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 11687736 is about 3418.7330986785. The cubic root of 11687736 is about 226.9395195534.

The spelling of 11687736 in words is "eleven million, six hundred eighty-seven thousand, seven hundred thirty-six".