630340687 has 2 divisors, whose sum is σ = 630340688. Its totient is φ = 630340686.

The previous prime is 630340681. The next prime is 630340717. The reversal of 630340687 is 786043036.

It is a happy number.

630340687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630340687 - 2³ = 630340679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630340681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315170343 + 315170344.

It is an arithmetic number, because the mean of its divisors is an integer number (315170344).

Almost surely, 2^630340687 is an apocalyptic number.

630340687 is a deficient number, since it is larger than the sum of its proper divisors (1).

630340687 is an equidigital number, since it uses as much as digits as its factorization.

630340687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 630340687 is about 25106.5865262484. The cubic root of 630340687 is about 857.4163884171.

The spelling of 630340687 in words is "six hundred thirty million, three hundred forty thousand, six hundred eighty-seven".