630334457 has 2 divisors, whose sum is σ = 630334458. Its totient is φ = 630334456.

The previous prime is 630334447. The next prime is 630334477. The reversal of 630334457 is 754433036.

630334457 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 can be written as a sum of positive squares in only one way, i.e., 337787641 + 292546816 = 18379^2 + 17104^2 .

It is a cyclic number.

It is not a de Polignac number, because 630334457 - 2¹⁰ = 630333433 is a prime.

It is not a weakly prime, because it can be changed into another prime (630334417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315167228 + 315167229.

It is an arithmetic number, because the mean of its divisors is an integer number (315167229).

Almost surely, 2^630334457 is an apocalyptic number.

It is an amenable number.

630334457 is a deficient number, since it is larger than the sum of its proper divisors (1).

630334457 is an equidigital number, since it uses as much as digits as its factorization.

630334457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 35.

The square root of 630334457 is about 25106.4624549139. The cubic root of 630334457 is about 857.4135636369.

The spelling of 630334457 in words is "six hundred thirty million, three hundred thirty-four thousand, four hundred fifty-seven".