963660869 has 2 divisors, whose sum is σ = 963660870. Its totient is φ = 963660868.

The previous prime is 963660853. The next prime is 963660871. The reversal of 963660869 is 968066369.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652138369 + 311522500 = 25537^2 + 17650^2 .

It is an emirp because it is prime and its reverse (968066369) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 963660869 - 2⁴ = 963660853 is a prime.

It is a super-2 number, since 2×963660869² = 1857284540883670322, which contains 22 as substring.

Together with 963660871, 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 963660869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (963660569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481830434 + 481830435.

It is an arithmetic number, because the mean of its divisors is an integer number (481830435).

Almost surely, 2^963660869 is an apocalyptic number.

It is an amenable number.

963660869 is a deficient number, since it is larger than the sum of its proper divisors (1).

963660869 is an equidigital number, since it uses as much as digits as its factorization.

963660869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 963660869 is about 31042.8875750952. The cubic root of 963660869 is about 987.7371946163.

The spelling of 963660869 in words is "nine hundred sixty-three million, six hundred sixty thousand, eight hundred sixty-nine".