965661787 has 2 divisors, whose sum is σ = 965661788. Its totient is φ = 965661786.

The previous prime is 965661733. The next prime is 965661817. The reversal of 965661787 is 787166569.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 965661787 - 2²⁷ = 831444059 is a prime.

It is not a weakly prime, because it can be changed into another prime (965662787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482830893 + 482830894.

It is an arithmetic number, because the mean of its divisors is an integer number (482830894).

Almost surely, 2^965661787 is an apocalyptic number.

965661787 is a deficient number, since it is larger than the sum of its proper divisors (1).

965661787 is an equidigital number, since it uses as much as digits as its factorization.

965661787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The square root of 965661787 is about 31075.0991470663. The cubic root of 965661787 is about 988.4203584660.

The spelling of 965661787 in words is "nine hundred sixty-five million, six hundred sixty-one thousand, seven hundred eighty-seven".