11670885 has 20 divisors (see below), whose sum is σ = 20921868. Its totient is φ = 6224256.

The previous prime is 11670881. The next prime is 11670887. The reversal of 11670885 is 58807611.

11670885 is nontrivially palindromic in base 11.

11670885 is digitally balanced in base 3, 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 2 ways, for example, as 8398404 + 3272481 = 2898^2 + 1809^2 .

It is not a de Polignac number, because 11670885 - 2² = 11670881 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11670881) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 14004 + ... + 14813.

Almost surely, 2^11670885 is an apocalyptic number.

11670885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11670885 is a deficient number, since it is larger than the sum of its proper divisors (9250983).

11670885 is an equidigital number, since it uses as much as digits as its factorization.

11670885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28834 (or 28825 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 11670885 is about 3416.2677002835. The cubic root of 11670885 is about 226.8304024080.

The spelling of 11670885 in words is "eleven million, six hundred seventy thousand, eight hundred eighty-five".