11804865 has 16 divisors (see below), whose sum is σ = 19709568. Its totient is φ = 6022016.

The previous prime is 11804861. The next prime is 11804867. The reversal of 11804865 is 56840811.

It is a cyclic number.

It is not a de Polignac number, because 11804865 - 2² = 11804861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11804861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16764 + ... + 17453.

It is an arithmetic number, because the mean of its divisors is an integer number (1231848).

Almost surely, 2^11804865 is an apocalyptic number.

11804865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11804865 is a deficient number, since it is larger than the sum of its proper divisors (7904703).

11804865 is a wasteful number, since it uses less digits than its factorization.

11804865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34248.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 11804865 is about 3435.8208626178. The cubic root of 11804865 is about 227.6950948935.

The spelling of 11804865 in words is "eleven million, eight hundred four thousand, eight hundred sixty-five".