9406409 has 4 divisors (see below), whose sum is σ = 9430980. Its totient is φ = 9381840.

The previous prime is 9406393. The next prime is 9406417. The reversal of 9406409 is 9046049.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9046049 = 89 ⋅101641.

It can be written as a sum of positive squares in 2 ways, for example, as 4579600 + 4826809 = 2140^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 9406409 - 2⁴ = 9406393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9403409) 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, 11702 + ... + 12479.

It is an arithmetic number, because the mean of its divisors is an integer number (2357745).

Almost surely, 2^9406409 is an apocalyptic number.

It is an amenable number.

9406409 is a deficient number, since it is larger than the sum of its proper divisors (24571).

9406409 is a wasteful number, since it uses less digits than its factorization.

9406409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24570.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 9406409 is about 3066.9869579116. The cubic root of 9406409 is about 211.0933827423.

The spelling of 9406409 in words is "nine million, four hundred six thousand, four hundred nine".