630500623 has 2 divisors, whose sum is σ = 630500624. Its totient is φ = 630500622.

The previous prime is 630500621. The next prime is 630500657. The reversal of 630500623 is 326005036.

630500623 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 is a cyclic number.

It is not a de Polignac number, because 630500623 - 2¹ = 630500621 is a prime.

Together with 630500621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630500621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315250311 + 315250312.

It is an arithmetic number, because the mean of its divisors is an integer number (315250312).

Almost surely, 2^630500623 is an apocalyptic number.

630500623 is a deficient number, since it is larger than the sum of its proper divisors (1).

630500623 is an equidigital number, since it uses as much as digits as its factorization.

630500623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 630500623 is about 25109.7714645116. The cubic root of 630500623 is about 857.4888995495.

Adding to 630500623 its reverse (326005036), we get a palindrome (956505659).

The spelling of 630500623 in words is "six hundred thirty million, five hundred thousand, six hundred twenty-three".