11988856 has 16 divisors (see below), whose sum is σ = 24522840. Its totient is φ = 5449440.

The previous prime is 11988853. The next prime is 11988869. The reversal of 11988856 is 65888911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68031 + ... + 68206.

Almost surely, 2^11988856 is an apocalyptic number.

It is an amenable number.

11988856 is an abundant number, since it is smaller than the sum of its proper divisors (12533984).

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

11988856 is a wasteful number, since it uses less digits than its factorization.

11988856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136254 (or 136250 counting only the distinct ones).

The product of its digits is 138240, while the sum is 46.

The square root of 11988856 is about 3462.4927436747. The cubic root of 11988856 is about 228.8719560303.

The spelling of 11988856 in words is "eleven million, nine hundred eighty-eight thousand, eight hundred fifty-six".