9004565 has 4 divisors (see below), whose sum is σ = 10805484. Its totient is φ = 7203648.

The previous prime is 9004561. The next prime is 9004571. The reversal of 9004565 is 5654009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5654009 = 443 ⋅12763.

It can be written as a sum of positive squares in 2 ways, for example, as 2337841 + 6666724 = 1529^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 9004565 - 2² = 9004561 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 (9004561) 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, 900452 + ... + 900461.

It is an arithmetic number, because the mean of its divisors is an integer number (2701371).

Almost surely, 2^9004565 is an apocalyptic number.

It is an amenable number.

9004565 is a deficient number, since it is larger than the sum of its proper divisors (1800919).

9004565 is a wasteful number, since it uses less digits than its factorization.

9004565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800918.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 9004565 is about 3000.7607368799. The cubic root of 9004565 is about 208.0435451854.

The spelling of 9004565 in words is "nine million, four thousand, five hundred sixty-five".