630705107 has 2 divisors, whose sum is σ = 630705108. Its totient is φ = 630705106.

The previous prime is 630705077. The next prime is 630705113. The reversal of 630705107 is 701507036.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630705107 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630705107.

It is not a weakly prime, because it can be changed into another prime (630705167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315352553 + 315352554.

It is an arithmetic number, because the mean of its divisors is an integer number (315352554).

Almost surely, 2^630705107 is an apocalyptic number.

630705107 is a deficient number, since it is larger than the sum of its proper divisors (1).

630705107 is an equidigital number, since it uses as much as digits as its factorization.

630705107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 630705107 is about 25113.8429357197. The cubic root of 630705107 is about 857.5815898136.

The spelling of 630705107 in words is "six hundred thirty million, seven hundred five thousand, one hundred seven".