630693439 has 2 divisors, whose sum is σ = 630693440. Its totient is φ = 630693438.

The previous prime is 630693407. The next prime is 630693449. The reversal of 630693439 is 934396036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 630693439 - 2⁵ = 630693407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630693395 and 630693404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630693449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315346719 + 315346720.

It is an arithmetic number, because the mean of its divisors is an integer number (315346720).

Almost surely, 2^630693439 is an apocalyptic number.

630693439 is a deficient number, since it is larger than the sum of its proper divisors (1).

630693439 is an equidigital number, since it uses as much as digits as its factorization.

630693439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 43.

The square root of 630693439 is about 25113.6106324837. The cubic root of 630693439 is about 857.5763013813.

The spelling of 630693439 in words is "six hundred thirty million, six hundred ninety-three thousand, four hundred thirty-nine".