9005287 has 4 divisors (see below), whose sum is σ = 9106560. Its totient is φ = 8904016.

The previous prime is 9005279. The next prime is 9005299. The reversal of 9005287 is 7825009.

9005287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7825009 = 1307 ⋅5987.

It is a cyclic number.

It is not a de Polignac number, because 9005287 - 2³ = 9005279 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9005237) 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, 50503 + ... + 50680.

It is an arithmetic number, because the mean of its divisors is an integer number (2276640).

Almost surely, 2^9005287 is an apocalyptic number.

9005287 is a deficient number, since it is larger than the sum of its proper divisors (101273).

9005287 is a wasteful number, since it uses less digits than its factorization.

9005287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101272.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 9005287 is about 3000.8810372955. The cubic root of 9005287 is about 208.0491054549.

The spelling of 9005287 in words is "nine million, five thousand, two hundred eighty-seven".