12016705 has 16 divisors (see below), whose sum is σ = 15420240. Its totient is φ = 8957952.

The previous prime is 12016687. The next prime is 12016717. The reversal of 12016705 is 50761021.

12016705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3207681 + 8809024 = 1791^2 + 2968^2 .

It is a 7-Lehmer number, since φ(12016705) divides (12016705-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 12016705 - 2⁷ = 12016577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8617 + ... + 9913.

It is an arithmetic number, because the mean of its divisors is an integer number (963765).

Almost surely, 2^12016705 is an apocalyptic number.

It is an amenable number.

12016705 is a deficient number, since it is larger than the sum of its proper divisors (3403535).

12016705 is a wasteful number, since it uses less digits than its factorization.

12016705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 12016705 is about 3466.5119356494. The cubic root of 12016705 is about 229.0490350936.

Adding to 12016705 its reverse (50761021), we get a palindrome (62777726).

It can be divided in two parts, 12016 and 705, that added together give a palindrome (12721).

The spelling of 12016705 in words is "twelve million, sixteen thousand, seven hundred five".