11687916 has 24 divisors (see below), whose sum is σ = 27907264. Its totient is φ = 3805200.

The previous prime is 11687909. The next prime is 11687917. The reversal of 11687916 is 61978611.

It is not an unprimeable number, because it can be changed into a prime (11687917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10810 + ... + 11841.

Almost surely, 2^11687916 is an apocalyptic number.

It is an amenable number.

11687916 is an abundant number, since it is smaller than the sum of its proper divisors (16219348).

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

11687916 is a wasteful number, since it uses less digits than its factorization.

11687916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22701 (or 22699 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 11687916 is about 3418.7594241186. The cubic root of 11687916 is about 226.9406845610.

The spelling of 11687916 in words is "eleven million, six hundred eighty-seven thousand, nine hundred sixteen".