9287889 has 8 divisors (see below), whose sum is σ = 13336512. Its totient is φ = 5715600.

The previous prime is 9287881. The next prime is 9287939. The reversal of 9287889 is 9887829.

9287889 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9287889 - 2³ = 9287881 is a prime.

9287889 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9287881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119037 + ... + 119114.

It is an arithmetic number, because the mean of its divisors is an integer number (1667064).

Almost surely, 2^9287889 is an apocalyptic number.

It is an amenable number.

9287889 is a deficient number, since it is larger than the sum of its proper divisors (4048623).

9287889 is a wasteful number, since it uses less digits than its factorization.

9287889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238167.

The product of its digits is 580608, while the sum is 51.

The square root of 9287889 is about 3047.6038128339. The cubic root of 9287889 is about 210.2030462444.

The spelling of 9287889 in words is "nine million, two hundred eighty-seven thousand, eight hundred eighty-nine".