630700537 has 2 divisors, whose sum is σ = 630700538. Its totient is φ = 630700536.

The previous prime is 630700513. The next prime is 630700589. The reversal of 630700537 is 735007036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320553216 + 310147321 = 17904^2 + 17611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630700537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630700499 and 630700508.

It is not a weakly prime, because it can be changed into another prime (630700507) 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, 315350268 + 315350269.

It is an arithmetic number, because the mean of its divisors is an integer number (315350269).

Almost surely, 2^630700537 is an apocalyptic number.

It is an amenable number.

630700537 is a deficient number, since it is larger than the sum of its proper divisors (1).

630700537 is an equidigital number, since it uses as much as digits as its factorization.

630700537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 630700537 is about 25113.7519498780. The cubic root of 630700537 is about 857.5795185036.

The spelling of 630700537 in words is "six hundred thirty million, seven hundred thousand, five hundred thirty-seven".