9390409 has 12 divisors (see below), whose sum is σ = 11567124. Its totient is φ = 7574784.

The previous prime is 9390397. The next prime is 9390419. The reversal of 9390409 is 9040939.

It can be written as a sum of positive squares in 2 ways, for example, as 4862025 + 4528384 = 2205^2 + 2128^2 .

It is not a de Polignac number, because 9390409 - 2⁷ = 9390281 is a prime.

It is a Duffinian number.

9390409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9390419) 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 11 ways as a sum of consecutive naturals, for example, 4804 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (963927).

Almost surely, 2^9390409 is an apocalyptic number.

It is an amenable number.

9390409 is a deficient number, since it is larger than the sum of its proper divisors (2176715).

9390409 is a wasteful number, since it uses less digits than its factorization.

9390409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304 (or 11297 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9390409 is about 3064.3774245350. The cubic root of 9390409 is about 210.9736271254.

The spelling of 9390409 in words is "nine million, three hundred ninety thousand, four hundred nine".