9409405 has 4 divisors (see below), whose sum is σ = 11291292. Its totient is φ = 7527520.

The previous prime is 9409403. The next prime is 9409409. The reversal of 9409405 is 5049049.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3229209 + 6180196 = 1797^2 + 2486^2 .

It is not a de Polignac number, because 9409405 - 2¹ = 9409403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9409403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940936 + ... + 940945.

It is an arithmetic number, because the mean of its divisors is an integer number (2822823).

Almost surely, 2^9409405 is an apocalyptic number.

It is an amenable number.

9409405 is a deficient number, since it is larger than the sum of its proper divisors (1881887).

9409405 is a wasteful number, since it uses less digits than its factorization.

9409405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881886.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 9409405 is about 3067.4753462742. The cubic root of 9409405 is about 211.1157918835.

The spelling of 9409405 in words is "nine million, four hundred nine thousand, four hundred five".