9405009 has 12 divisors (see below), whose sum is σ = 13842036. Its totient is φ = 6151392.

The previous prime is 9404987. The next prime is 9405017. The reversal of 9405009 is 9005049.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 6110784 = 1815^2 + 2472^2 .

It is not a de Polignac number, because 9405009 - 2⁷ = 9404881 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9405079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9382 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (1153503).

Almost surely, 2^9405009 is an apocalyptic number.

It is an amenable number.

9405009 is a deficient number, since it is larger than the sum of its proper divisors (4437027).

9405009 is a wasteful number, since it uses less digits than its factorization.

9405009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776 (or 19773 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9405009 is about 3066.7587123867. The cubic root of 9405009 is about 211.0829095497.

The spelling of 9405009 in words is "nine million, four hundred five thousand, nine".