630654523 has 2 divisors, whose sum is σ = 630654524. Its totient is φ = 630654522.

The previous prime is 630654511. The next prime is 630654527. The reversal of 630654523 is 325456036.

630654523 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 630654523 - 2¹⁷ = 630523451 is a prime.

It is not a weakly prime, because it can be changed into another prime (630654527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315327261 + 315327262.

It is an arithmetic number, because the mean of its divisors is an integer number (315327262).

Almost surely, 2^630654523 is an apocalyptic number.

630654523 is a deficient number, since it is larger than the sum of its proper divisors (1).

630654523 is an equidigital number, since it uses as much as digits as its factorization.

630654523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 630654523 is about 25112.8358215475. The cubic root of 630654523 is about 857.5586625287.

The spelling of 630654523 in words is "six hundred thirty million, six hundred fifty-four thousand, five hundred twenty-three".