10223809 has 4 divisors (see below), whose sum is σ = 10461616. Its totient is φ = 9986004.

The previous prime is 10223797. The next prime is 10223813. The reversal of 10223809 is 90832201.

10223809 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90832201 = 31 ⋅2930071.

It is a cyclic number.

It is not a de Polignac number, because 10223809 - 2⁵ = 10223777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10223819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118839 + ... + 118924.

It is an arithmetic number, because the mean of its divisors is an integer number (2615404).

Almost surely, 2^10223809 is an apocalyptic number.

It is an amenable number.

10223809 is a deficient number, since it is larger than the sum of its proper divisors (237807).

10223809 is an equidigital number, since it uses as much as digits as its factorization.

10223809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237806.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10223809 is about 3197.4691554415. The cubic root of 10223809 is about 217.0388980791.

The spelling of 10223809 in words is "ten million, two hundred twenty-three thousand, eight hundred nine".