12080785 has 4 divisors (see below), whose sum is σ = 14496948. Its totient is φ = 9664624.

The previous prime is 12080779. The next prime is 12080813. The reversal of 12080785 is 58708021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7935489 + 4145296 = 2817^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 12080785 - 2⁷ = 12080657 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 1208074 + ... + 1208083.

It is an arithmetic number, because the mean of its divisors is an integer number (3624237).

Almost surely, 2^12080785 is an apocalyptic number.

It is an amenable number.

12080785 is a deficient number, since it is larger than the sum of its proper divisors (2416163).

12080785 is an equidigital number, since it uses as much as digits as its factorization.

12080785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416162.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 12080785 is about 3475.7423667470. The cubic root of 12080785 is about 229.4554540363.

The spelling of 12080785 in words is "twelve million, eighty thousand, seven hundred eighty-five".