630920347 has 2 divisors, whose sum is σ = 630920348. Its totient is φ = 630920346.

The previous prime is 630920309. The next prime is 630920363. The reversal of 630920347 is 743029036.

630920347 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 630920347 - 2⁷ = 630920219 is a prime.

It is a super-3 number, since 3×630920347³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (637920347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315460173 + 315460174.

It is an arithmetic number, because the mean of its divisors is an integer number (315460174).

Almost surely, 2^630920347 is an apocalyptic number.

630920347 is a deficient number, since it is larger than the sum of its proper divisors (1).

630920347 is an equidigital number, since it uses as much as digits as its factorization.

630920347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 630920347 is about 25118.1278561918. The cubic root of 630920347 is about 857.6791340095.

The spelling of 630920347 in words is "six hundred thirty million, nine hundred twenty thousand, three hundred forty-seven".