961680008 has 8 divisors (see below), whose sum is σ = 1803150030. Its totient is φ = 480840000.

The previous prime is 961680007. The next prime is 961680017. The reversal of 961680008 is 800086169.

It can be written as a sum of positive squares in only one way, i.e., 958645444 + 3034564 = 30962^2 + 1742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (961680007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60104993 + ... + 60105008.

Almost surely, 2^961680008 is an apocalyptic number.

It is an amenable number.

961680008 is a deficient number, since it is larger than the sum of its proper divisors (841470022).

961680008 is a wasteful number, since it uses less digits than its factorization.

961680008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120210007 (or 120210003 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 961680008 is about 31010.9659314250. The cubic root of 961680008 is about 987.0599466004.

The spelling of 961680008 in words is "nine hundred sixty-one million, six hundred eighty thousand, eight".