10669689 has 12 divisors (see below), whose sum is σ = 15440100. Its totient is φ = 7100064.

The previous prime is 10669669. The next prime is 10669691. The reversal of 10669689 is 98696601.

It can be written as a sum of positive squares in 2 ways, for example, as 1937664 + 8732025 = 1392^2 + 2955^2 .

It is not a de Polignac number, because 10669689 - 2⁵ = 10669657 is a prime.

It is a super-2 number, since 2×10669689² = 227684526713442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10669609) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9067 + ... + 10175.

It is an arithmetic number, because the mean of its divisors is an integer number (1286675).

Almost surely, 2^10669689 is an apocalyptic number.

It is an amenable number.

10669689 is a deficient number, since it is larger than the sum of its proper divisors (4770411).

10669689 is a wasteful number, since it uses less digits than its factorization.

10669689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 10669689 is about 3266.4489893461. The cubic root of 10669689 is about 220.1492719730.

The spelling of 10669689 in words is "ten million, six hundred sixty-nine thousand, six hundred eighty-nine".