10669985 has 4 divisors (see below), whose sum is σ = 12803988. Its totient is φ = 8535984.

The previous prime is 10669979. The next prime is 10669991. The reversal of 10669985 is 58996601.

10669985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58996601 = 3541 ⋅16661.

It is an interprime number because it is at equal distance from previous prime (10669979) and next prime (10669991).

It can be written as a sum of positive squares in 2 ways, for example, as 7656289 + 3013696 = 2767^2 + 1736^2 .

It is a cyclic number.

It is not a de Polignac number, because 10669985 - 2⁴ = 10669969 is a prime.

It is a super-2 number, since 2×10669985² = 227697159800450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066994 + ... + 1067003.

It is an arithmetic number, because the mean of its divisors is an integer number (3200997).

Almost surely, 2^10669985 is an apocalyptic number.

It is an amenable number.

10669985 is a deficient number, since it is larger than the sum of its proper divisors (2134003).

10669985 is an equidigital number, since it uses as much as digits as its factorization.

10669985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134002.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 10669985 is about 3266.4942981735. The cubic root of 10669985 is about 220.1513077581.

The spelling of 10669985 in words is "ten million, six hundred sixty-nine thousand, nine hundred eighty-five".