11784881 has 8 divisors (see below), whose sum is σ = 12122880. Its totient is φ = 11449872.

The previous prime is 11784847. The next prime is 11784887. The reversal of 11784881 is 18848711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11784881 is a prime.

It is a super-2 number, since 2×11784881² = 277766840368322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11784887) 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 7 ways as a sum of consecutive naturals, for example, 8975 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (1515360).

Almost surely, 2^11784881 is an apocalyptic number.

It is an amenable number.

11784881 is a deficient number, since it is larger than the sum of its proper divisors (337999).

11784881 is a wasteful number, since it uses less digits than its factorization.

11784881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495.

The product of its digits is 14336, while the sum is 38.

The square root of 11784881 is about 3432.9114465713. The cubic root of 11784881 is about 227.5665369121.

The spelling of 11784881 in words is "eleven million, seven hundred eighty-four thousand, eight hundred eighty-one".