11216705 has 8 divisors (see below), whose sum is σ = 13509312. Its totient is φ = 8940528.

The previous prime is 11216693. The next prime is 11216713. The reversal of 11216705 is 50761211.

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

It is a cyclic number.

It is not a de Polignac number, because 11216705 - 2⁶ = 11216641 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2549 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (1688664).

Almost surely, 2^11216705 is an apocalyptic number.

It is an amenable number.

11216705 is a deficient number, since it is larger than the sum of its proper divisors (2292607).

11216705 is an equidigital number, since it uses as much as digits as its factorization.

11216705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11216705 is about 3349.1349629419. The cubic root of 11216705 is about 223.8489694607.

Adding to 11216705 its reverse (50761211), we get a palindrome (61977916).

The spelling of 11216705 in words is "eleven million, two hundred sixteen thousand, seven hundred five".