9561287 has 2 divisors, whose sum is σ = 9561288. Its totient is φ = 9561286.

The previous prime is 9561283. The next prime is 9561289. The reversal of 9561287 is 7821659.

9561287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9561287 - 2² = 9561283 is a prime.

Together with 9561289, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9561287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9561283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4780643 + 4780644.

It is an arithmetic number, because the mean of its divisors is an integer number (4780644).

Almost surely, 2^9561287 is an apocalyptic number.

9561287 is a deficient number, since it is larger than the sum of its proper divisors (1).

9561287 is an equidigital number, since it uses as much as digits as its factorization.

9561287 is an evil number, because the sum of its binary digits is even.

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

The square root of 9561287 is about 3092.1330825176. The cubic root of 9561287 is about 212.2456435302.

The spelling of 9561287 in words is "nine million, five hundred sixty-one thousand, two hundred eighty-seven".