10885009 has 4 divisors (see below), whose sum is σ = 10892340. Its totient is φ = 10877680.

The previous prime is 10885001. The next prime is 10885027. The reversal of 10885009 is 90058801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90058801 = 7 ⋅12865543.

It can be written as a sum of positive squares in 2 ways, for example, as 4774225 + 6110784 = 2185^2 + 2472^2 .

It is a cyclic number.

It is not a de Polignac number, because 10885009 - 2³ = 10885001 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 not an unprimeable number, because it can be changed into a prime (10885001) 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 3 ways as a sum of consecutive naturals, for example, 562 + ... + 4699.

It is an arithmetic number, because the mean of its divisors is an integer number (2723085).

Almost surely, 2^10885009 is an apocalyptic number.

It is an amenable number.

10885009 is a deficient number, since it is larger than the sum of its proper divisors (7331).

10885009 is an equidigital number, since it uses as much as digits as its factorization.

10885009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 10885009 is about 3299.2437012140. The cubic root of 10885009 is about 221.6203301366.

The spelling of 10885009 in words is "ten million, eight hundred eighty-five thousand, nine".