9287561 has 16 divisors (see below), whose sum is σ = 10419840. Its totient is φ = 8236800.

The previous prime is 9287543. The next prime is 9287567. The reversal of 9287561 is 1657829.

It is a cyclic number.

It is not a de Polignac number, because 9287561 - 2⁶ = 9287497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9287567) 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 15 ways as a sum of consecutive naturals, for example, 22961 + ... + 23361.

It is an arithmetic number, because the mean of its divisors is an integer number (651240).

Almost surely, 2^9287561 is an apocalyptic number.

It is an amenable number.

9287561 is a deficient number, since it is larger than the sum of its proper divisors (1132279).

9287561 is a wasteful number, since it uses less digits than its factorization.

9287561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 30240, while the sum is 38.

The square root of 9287561 is about 3047.5499995898. The cubic root of 9287561 is about 210.2005717886.

The spelling of 9287561 in words is "nine million, two hundred eighty-seven thousand, five hundred sixty-one".