11685216 has 24 divisors (see below), whose sum is σ = 30673944. Its totient is φ = 3895040.

The previous prime is 11685211. The next prime is 11685227. The reversal of 11685216 is 61258611.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11685211) 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, 60765 + ... + 60956.

It is an arithmetic number, because the mean of its divisors is an integer number (1278081).

Almost surely, 2^11685216 is an apocalyptic number.

11685216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11685216 is an abundant number, since it is smaller than the sum of its proper divisors (18988728).

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

11685216 is a wasteful number, since it uses less digits than its factorization.

11685216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121734 (or 121726 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 11685216 is about 3418.3645212294. The cubic root of 11685216 is about 226.9232081909.

The spelling of 11685216 in words is "eleven million, six hundred eighty-five thousand, two hundred sixteen".