630776068 has 12 divisors (see below), whose sum is σ = 1188770380. Its totient is φ = 291127392.

The previous prime is 630776063. The next prime is 630776087. The reversal of 630776068 is 860677036.

It can be written as a sum of positive squares in 2 ways, for example, as 178703424 + 452072644 = 13368^2 + 21262^2 .

It is not an unprimeable number, because it can be changed into a prime (630776063) 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 in 3 ways as a sum of consecutive naturals, for example, 6065103 + ... + 6065206.

Almost surely, 2^630776068 is an apocalyptic number.

It is an amenable number.

630776068 is a deficient number, since it is larger than the sum of its proper divisors (557994312).

630776068 is a wasteful number, since it uses less digits than its factorization.

630776068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130326 (or 12130324 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 630776068 is about 25115.2556825528. The cubic root of 630776068 is about 857.6137509427.

The spelling of 630776068 in words is "six hundred thirty million, seven hundred seventy-six thousand, sixty-eight".