630689011 has 2 divisors, whose sum is σ = 630689012. Its totient is φ = 630689010.

The previous prime is 630688987. The next prime is 630689039. The reversal of 630689011 is 110986036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630689011 - 2⁵ = 630688979 is a prime.

It is not a weakly prime, because it can be changed into another prime (630689911) by changing a digit.

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 as a sum of consecutive naturals, namely, 315344505 + 315344506.

It is an arithmetic number, because the mean of its divisors is an integer number (315344506).

Almost surely, 2^630689011 is an apocalyptic number.

630689011 is a deficient number, since it is larger than the sum of its proper divisors (1).

630689011 is an equidigital number, since it uses as much as digits as its factorization.

630689011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 630689011 is about 25113.5224729626. The cubic root of 630689011 is about 857.5742944069.

The spelling of 630689011 in words is "six hundred thirty million, six hundred eighty-nine thousand, eleven".