10068209 has 4 divisors (see below), whose sum is σ = 10076916. Its totient is φ = 10059504.

The previous prime is 10068193. The next prime is 10068217. The reversal of 10068209 is 90286001.

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: 90286001 = 13 ⋅6945077.

It can be written as a sum of positive squares in 2 ways, for example, as 4906225 + 5161984 = 2215^2 + 2272^2 .

It is a cyclic number.

It is not a de Polignac number, because 10068209 - 2⁴ = 10068193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10068229) 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, 2294 + ... + 5039.

It is an arithmetic number, because the mean of its divisors is an integer number (2519229).

Almost surely, 2^10068209 is an apocalyptic number.

It is an amenable number.

10068209 is a deficient number, since it is larger than the sum of its proper divisors (8707).

10068209 is an equidigital number, since it uses as much as digits as its factorization.

10068209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8706.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 10068209 is about 3173.0441219750. The cubic root of 10068209 is about 215.9321989417.

The spelling of 10068209 in words is "ten million, sixty-eight thousand, two hundred nine".