630602653 has 2 divisors, whose sum is σ = 630602654. Its totient is φ = 630602652.

The previous prime is 630602633. The next prime is 630602657. The reversal of 630602653 is 356206036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403286724 + 227315929 = 20082^2 + 15077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630602653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630602657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315301326 + 315301327.

It is an arithmetic number, because the mean of its divisors is an integer number (315301327).

Almost surely, 2^630602653 is an apocalyptic number.

It is an amenable number.

630602653 is a deficient number, since it is larger than the sum of its proper divisors (1).

630602653 is an equidigital number, since it uses as much as digits as its factorization.

630602653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 630602653 is about 25111.8030615087. The cubic root of 630602653 is about 857.5351510890.

Adding to 630602653 its reverse (356206036), we get a palindrome (986808689).

The spelling of 630602653 in words is "six hundred thirty million, six hundred two thousand, six hundred fifty-three".