965050991 has 2 divisors, whose sum is σ = 965050992. Its totient is φ = 965050990.

The previous prime is 965050979. The next prime is 965051027. The reversal of 965050991 is 199050569.

965050991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-965050991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (965050901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482525495 + 482525496.

It is an arithmetic number, because the mean of its divisors is an integer number (482525496).

Almost surely, 2^965050991 is an apocalyptic number.

965050991 is a deficient number, since it is larger than the sum of its proper divisors (1).

965050991 is an equidigital number, since it uses as much as digits as its factorization.

965050991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 965050991 is about 31065.2698523609. The cubic root of 965050991 is about 988.2119174631.

The spelling of 965050991 in words is "nine hundred sixty-five million, fifty thousand, nine hundred ninety-one".