9004405 has 8 divisors (see below), whose sum is σ = 10901592. Its totient is φ = 7139328.

The previous prime is 9004399. The next prime is 9004451. The reversal of 9004405 is 5044009.

9004405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 88209 + 8916196 = 297^2 + 2986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9004405 - 2⁷ = 9004277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7404 + ... + 8533.

It is an arithmetic number, because the mean of its divisors is an integer number (1362699).

Almost surely, 2^9004405 is an apocalyptic number.

It is an amenable number.

9004405 is a deficient number, since it is larger than the sum of its proper divisors (1897187).

9004405 is a wasteful number, since it uses less digits than its factorization.

9004405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16055.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 9004405 is about 3000.7340768552. The cubic root of 9004405 is about 208.0423129524.

It can be divided in two parts, 9004 and 405, that added together give a square (9409 = 97²).

The spelling of 9004405 in words is "nine million, four thousand, four hundred five".