10422809 has 2 divisors, whose sum is σ = 10422810. Its totient is φ = 10422808.

The previous prime is 10422791. The next prime is 10422817. The reversal of 10422809 is 90822401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5569600 + 4853209 = 2360^2 + 2203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10422809 is a prime.

It is not a weakly prime, because it can be changed into another prime (10422829) 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 as a sum of consecutive naturals, namely, 5211404 + 5211405.

It is an arithmetic number, because the mean of its divisors is an integer number (5211405).

Almost surely, 2^10422809 is an apocalyptic number.

It is an amenable number.

10422809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10422809 is an equidigital number, since it uses as much as digits as its factorization.

10422809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 10422809 is about 3228.4375477930. The cubic root of 10422809 is about 218.4380343287.

The spelling of 10422809 in words is "ten million, four hundred twenty-two thousand, eight hundred nine".