963943668 has 18 divisors (see below), whose sum is σ = 2436635474. Its totient is φ = 321314544.

The previous prime is 963943637. The next prime is 963943693. The reversal of 963943668 is 866349369.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 883159524 + 80784144 = 29718^2 + 8988^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 13388071 + ... + 13388142.

Almost surely, 2^963943668 is an apocalyptic number.

It is an amenable number.

963943668 is an abundant number, since it is smaller than the sum of its proper divisors (1472691806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

963943668 is a wasteful number, since it uses less digits than its factorization.

963943668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26776223 (or 26776218 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 963943668 is about 31047.4422134900. The cubic root of 963943668 is about 987.8338066714.

The spelling of 963943668 in words is "nine hundred sixty-three million, nine hundred forty-three thousand, six hundred sixty-eight".