11878784 has 64 divisors (see below), whose sum is σ = 25777440. Its totient is φ = 5431296.

The previous prime is 11878759. The next prime is 11878829. The reversal of 11878784 is 48787811.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×11878784² = 282211018637312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115277 + ... + 115379.

Almost surely, 2^11878784 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 11878784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12888720).

11878784 is an abundant number, since it is smaller than the sum of its proper divisors (13898656).

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

11878784 is a wasteful number, since it uses less digits than its factorization.

11878784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 175 counting only the distinct ones).

The product of its digits is 100352, while the sum is 44.

The square root of 11878784 is about 3446.5611847173. The cubic root of 11878784 is about 228.1693622114.

The spelling of 11878784 in words is "eleven million, eight hundred seventy-eight thousand, seven hundred eighty-four".