11687976 has 80 divisors (see below), whose sum is σ = 34695540. Its totient is φ = 3663360.

The previous prime is 11687953. The next prime is 11687989. The reversal of 11687976 is 67978611.

It can be written as a sum of positive squares in 2 ways, for example, as 11088900 + 599076 = 3330^2 + 774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10486 + ... + 11546.

Almost surely, 2^11687976 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 11687976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17347770).

11687976 is an abundant number, since it is smaller than the sum of its proper divisors (23007564).

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

11687976 is a wasteful number, since it uses less digits than its factorization.

11687976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1083 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 11687976 is about 3418.7681992203. The cubic root of 11687976 is about 226.9410728942.

The spelling of 11687976 in words is "eleven million, six hundred eighty-seven thousand, nine hundred seventy-six".