11778856 has 16 divisors (see below), whose sum is σ = 22448340. Its totient is φ = 5792640.

The previous prime is 11778847. The next prime is 11778859. The reversal of 11778856 is 65887711.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 448900 = 3366^2 + 670^2 .

It is not an unprimeable number, because it can be changed into a prime (11778859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11581 + ... + 12556.

Almost surely, 2^11778856 is an apocalyptic number.

It is an amenable number.

11778856 is a deficient number, since it is larger than the sum of its proper divisors (10669484).

11778856 is a wasteful number, since it uses less digits than its factorization.

11778856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24204 (or 24200 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The square root of 11778856 is about 3432.0337993674. The cubic root of 11778856 is about 227.5277493020.

The spelling of 11778856 in words is "eleven million, seven hundred seventy-eight thousand, eight hundred fifty-six".