630409573 has 2 divisors, whose sum is σ = 630409574. Its totient is φ = 630409572.

The previous prime is 630409567. The next prime is 630409601. The reversal of 630409573 is 375904036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626901444 + 3508129 = 25038^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 630409573 - 2²⁵ = 596855141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630409523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315204786 + 315204787.

It is an arithmetic number, because the mean of its divisors is an integer number (315204787).

Almost surely, 2^630409573 is an apocalyptic number.

It is an amenable number.

630409573 is a deficient number, since it is larger than the sum of its proper divisors (1).

630409573 is an equidigital number, since it uses as much as digits as its factorization.

630409573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 630409573 is about 25107.9583598508. The cubic root of 630409573 is about 857.4476211748.

The spelling of 630409573 in words is "six hundred thirty million, four hundred nine thousand, five hundred seventy-three".