11865814 has 8 divisors (see below), whose sum is σ = 18412560. Its totient is φ = 5728296.

The previous prime is 11865809. The next prime is 11865829. The reversal of 11865814 is 41856811.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11865814.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 102234 + ... + 102349.

It is an arithmetic number, because the mean of its divisors is an integer number (2301570).

Almost surely, 2^11865814 is an apocalyptic number.

11865814 is a deficient number, since it is larger than the sum of its proper divisors (6546746).

11865814 is a wasteful number, since it uses less digits than its factorization.

11865814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204614.

The product of its digits is 7680, while the sum is 34.

The square root of 11865814 is about 3444.6790851979. The cubic root of 11865814 is about 228.0862887713.

The spelling of 11865814 in words is "eleven million, eight hundred sixty-five thousand, eight hundred fourteen".