10668985 has 4 divisors (see below), whose sum is σ = 12802788. Its totient is φ = 8535184.

The previous prime is 10668971. The next prime is 10669003. The reversal of 10668985 is 58986601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58986601 = 1109 ⋅53189.

It can be written as a sum of positive squares in 2 ways, for example, as 5456896 + 5212089 = 2336^2 + 2283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10668985 is a prime.

It is a super-2 number, since 2×10668985² = 227654481860450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066894 + ... + 1066903.

It is an arithmetic number, because the mean of its divisors is an integer number (3200697).

Almost surely, 2^10668985 is an apocalyptic number.

It is an amenable number.

10668985 is a deficient number, since it is larger than the sum of its proper divisors (2133803).

10668985 is an equidigital number, since it uses as much as digits as its factorization.

10668985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133802.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 10668985 is about 3266.3412252856. The cubic root of 10668985 is about 220.1444299544.

The spelling of 10668985 in words is "ten million, six hundred sixty-eight thousand, nine hundred eighty-five".