630343871 has 2 divisors, whose sum is σ = 630343872. Its totient is φ = 630343870.

The previous prime is 630343823. The next prime is 630343897. The reversal of 630343871 is 178343036.

It is a happy number.

630343871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630343871 - 2⁶ = 630343807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630343811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315171935 + 315171936.

It is an arithmetic number, because the mean of its divisors is an integer number (315171936).

Almost surely, 2^630343871 is an apocalyptic number.

630343871 is a deficient number, since it is larger than the sum of its proper divisors (1).

630343871 is an equidigital number, since it uses as much as digits as its factorization.

630343871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 630343871 is about 25106.6499358238. The cubic root of 630343871 is about 857.4178320857.

The spelling of 630343871 in words is "six hundred thirty million, three hundred forty-three thousand, eight hundred seventy-one".