9287280 has 60 divisors (see below), whose sum is σ = 31192200. Its totient is φ = 2476416.

The previous prime is 9287263. The next prime is 9287293. The reversal of 9287280 is 827829.

9287280 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 tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5730 + ... + 7169.

It is an arithmetic number, because the mean of its divisors is an integer number (519870).

Almost surely, 2^9287280 is an apocalyptic number.

9287280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9287280 is an abundant number, since it is smaller than the sum of its proper divisors (21904920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9287280 is a wasteful number, since it uses less digits than its factorization.

9287280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12918 (or 12909 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 9287280 is about 3047.5038966341. The cubic root of 9287280 is about 210.1984518579.

The spelling of 9287280 in words is "nine million, two hundred eighty-seven thousand, two hundred eighty".