11867816 has 16 divisors (see below), whose sum is σ = 23220000. Its totient is φ = 5675824.

The previous prime is 11867809. The next prime is 11867827. The reversal of 11867816 is 61876811.

It is a self number, because there is not a number n which added to its sum of digits gives 11867816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32066 + ... + 32433.

It is an arithmetic number, because the mean of its divisors is an integer number (1451250).

Almost surely, 2^11867816 is an apocalyptic number.

It is an amenable number.

11867816 is a deficient number, since it is larger than the sum of its proper divisors (11352184).

11867816 is a wasteful number, since it uses less digits than its factorization.

11867816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64528 (or 64524 counting only the distinct ones).

The product of its digits is 16128, while the sum is 38.

The square root of 11867816 is about 3444.9696660493. The cubic root of 11867816 is about 228.0991156219.

The spelling of 11867816 in words is "eleven million, eight hundred sixty-seven thousand, eight hundred sixteen".