9272287 has 4 divisors (see below), whose sum is σ = 9376560. Its totient is φ = 9168016.

The previous prime is 9272279. The next prime is 9272339. The reversal of 9272287 is 7822729.

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

It is a cyclic number.

It is not a de Polignac number, because 9272287 - 2³ = 9272279 is a prime.

It is a d-powerful number, because it can be written as 9⁷ + 2² + 7² + 2¹⁸ + 2²² + 8⁵ + 7² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9272587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52003 + ... + 52180.

It is an arithmetic number, because the mean of its divisors is an integer number (2344140).

Almost surely, 2^9272287 is an apocalyptic number.

9272287 is a deficient number, since it is larger than the sum of its proper divisors (104273).

9272287 is a wasteful number, since it uses less digits than its factorization.

9272287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104272.

The product of its digits is 28224, while the sum is 37.

The square root of 9272287 is about 3045.0430210426. The cubic root of 9272287 is about 210.0852790453.

It can be divided in two parts, 9272 and 287, that added together give a palindrome (9559).

The spelling of 9272287 in words is "nine million, two hundred seventy-two thousand, two hundred eighty-seven".