965590643 has 2 divisors, whose sum is σ = 965590644. Its totient is φ = 965590642.

The previous prime is 965590601. The next prime is 965590657. The reversal of 965590643 is 346095569.

It is a strong prime.

It is an emirp because it is prime and its reverse (346095569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 965590643 - 2¹² = 965586547 is a prime.

It is not a weakly prime, because it can be changed into another prime (965595643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482795321 + 482795322.

It is an arithmetic number, because the mean of its divisors is an integer number (482795322).

Almost surely, 2^965590643 is an apocalyptic number.

965590643 is a deficient number, since it is larger than the sum of its proper divisors (1).

965590643 is an equidigital number, since it uses as much as digits as its factorization.

965590643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 874800, while the sum is 47.

The square root of 965590643 is about 31073.9544152333. The cubic root of 965590643 is about 988.3960842995.

The spelling of 965590643 in words is "nine hundred sixty-five million, five hundred ninety thousand, six hundred forty-three".