9372287 has 4 divisors (see below), whose sum is σ = 9923616. Its totient is φ = 8820960.

The previous prime is 9372281. The next prime is 9372289. The reversal of 9372287 is 7822739.

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

It is not a de Polignac number, because 9372287 - 2¹⁴ = 9355903 is a prime.

It is a super-3 number, since 3×9372287³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9372287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9372281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275639 + ... + 275672.

It is an arithmetic number, because the mean of its divisors is an integer number (2480904).

Almost surely, 2^9372287 is an apocalyptic number.

9372287 is a deficient number, since it is larger than the sum of its proper divisors (551329).

9372287 is a wasteful number, since it uses less digits than its factorization.

9372287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551328.

The product of its digits is 42336, while the sum is 38.

The square root of 9372287 is about 3061.4191153777. The cubic root of 9372287 is about 210.8378245158.

The spelling of 9372287 in words is "nine million, three hundred seventy-two thousand, two hundred eighty-seven".