9409409 has 2 divisors, whose sum is σ = 9409410. Its totient is φ = 9409408.

The previous prime is 9409403. The next prime is 9409423. The reversal of 9409409 is 9049049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5626384 + 3783025 = 2372^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 9409409 - 2¹² = 9405313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9409403) 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, 4704704 + 4704705.

It is an arithmetic number, because the mean of its divisors is an integer number (4704705).

Almost surely, 2^9409409 is an apocalyptic number.

It is an amenable number.

9409409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9409409 is an equidigital number, since it uses as much as digits as its factorization.

9409409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 9409409 is about 3067.4759982761. The cubic root of 9409409 is about 211.1158217991.

The spelling of 9409409 in words is "nine million, four hundred nine thousand, four hundred nine".