961187 has 2 divisors, whose sum is σ = 961188. Its totient is φ = 961186.

The previous prime is 961183. The next prime is 961189. The reversal of 961187 is 781169.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 961187 - 2² = 961183 is a prime.

Together with 961189, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961187.

It is not a weakly prime, because it can be changed into another prime (961183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480593 + 480594.

It is an arithmetic number, because the mean of its divisors is an integer number (480594).

2⁹⁶¹¹⁸⁷ is an apocalyptic number.

961187 is a deficient number, since it is larger than the sum of its proper divisors (1).

961187 is an equidigital number, since it uses as much as digits as its factorization.

961187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 32.

The square root of 961187 is about 980.4014483873. The cubic root of 961187 is about 98.6891244736.

The spelling of 961187 in words is "nine hundred sixty-one thousand, one hundred eighty-seven".