10304209 has 4 divisors (see below), whose sum is σ = 10378480. Its totient is φ = 10229940.

The previous prime is 10304197. The next prime is 10304237. The reversal of 10304209 is 90240301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90240301 = 17 ⋅5308253.

It is a cyclic number.

It is not a de Polignac number, because 10304209 - 2⁷ = 10304081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10304249) 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 3 ways as a sum of consecutive naturals, for example, 36927 + ... + 37204.

It is an arithmetic number, because the mean of its divisors is an integer number (2594620).

Almost surely, 2^10304209 is an apocalyptic number.

It is an amenable number.

10304209 is a deficient number, since it is larger than the sum of its proper divisors (74271).

10304209 is an equidigital number, since it uses as much as digits as its factorization.

10304209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74270.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 10304209 is about 3210.0169781482. The cubic root of 10304209 is about 217.6063442611.

The spelling of 10304209 in words is "ten million, three hundred four thousand, two hundred nine".