630321743 has 2 divisors, whose sum is σ = 630321744. Its totient is φ = 630321742.

The previous prime is 630321719. The next prime is 630321773. The reversal of 630321743 is 347123036.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630321743 - 2¹⁴ = 630305359 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 (630321773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315160871 + 315160872.

It is an arithmetic number, because the mean of its divisors is an integer number (315160872).

Almost surely, 2^630321743 is an apocalyptic number.

630321743 is a deficient number, since it is larger than the sum of its proper divisors (1).

630321743 is an equidigital number, since it uses as much as digits as its factorization.

630321743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 630321743 is about 25106.2092518962. The cubic root of 630321743 is about 857.4077988511.

Adding to 630321743 its reverse (347123036), we get a palindrome (977444779).

The spelling of 630321743 in words is "six hundred thirty million, three hundred twenty-one thousand, seven hundred forty-three".