630704647 has 2 divisors, whose sum is σ = 630704648. Its totient is φ = 630704646.

The previous prime is 630704623. The next prime is 630704651. The reversal of 630704647 is 746407036.

630704647 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 630704647 - 2⁷ = 630704519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630704617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315352323 + 315352324.

It is an arithmetic number, because the mean of its divisors is an integer number (315352324).

Almost surely, 2^630704647 is an apocalyptic number.

630704647 is a deficient number, since it is larger than the sum of its proper divisors (1).

630704647 is an equidigital number, since it uses as much as digits as its factorization.

630704647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 630704647 is about 25113.8337774224. The cubic root of 630704647 is about 857.5813813233.

The spelling of 630704647 in words is "six hundred thirty million, seven hundred four thousand, six hundred forty-seven".