11787716 has 6 divisors (see below), whose sum is σ = 20628510. Its totient is φ = 5893856.

The previous prime is 11787691. The next prime is 11787739. The reversal of 11787716 is 61778711.

It can be written as a sum of positive squares in only one way, i.e., 7182400 + 4605316 = 2680^2 + 2146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11787716.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473461 + ... + 1473468.

It is an arithmetic number, because the mean of its divisors is an integer number (3438085).

Almost surely, 2^11787716 is an apocalyptic number.

It is an amenable number.

11787716 is a deficient number, since it is larger than the sum of its proper divisors (8840794).

11787716 is a wasteful number, since it uses less digits than its factorization.

11787716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946933 (or 2946931 counting only the distinct ones).

The product of its digits is 16464, while the sum is 38.

The square root of 11787716 is about 3433.3243365578. The cubic root of 11787716 is about 227.5847834379.

The spelling of 11787716 in words is "eleven million, seven hundred eighty-seven thousand, seven hundred sixteen".