630890503 has 2 divisors, whose sum is σ = 630890504. Its totient is φ = 630890502.

The previous prime is 630890501. The next prime is 630890537. The reversal of 630890503 is 305098036.

It is an a-pointer prime, because the next prime (630890537) can be obtained adding 630890503 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630890503 - 2¹ = 630890501 is a prime.

Together with 630890501, 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 (630890501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315445251 + 315445252.

It is an arithmetic number, because the mean of its divisors is an integer number (315445252).

Almost surely, 2^630890503 is an apocalyptic number.

630890503 is a deficient number, since it is larger than the sum of its proper divisors (1).

630890503 is an equidigital number, since it uses as much as digits as its factorization.

630890503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 630890503 is about 25117.5337762289. The cubic root of 630890503 is about 857.6656103902.

The spelling of 630890503 in words is "six hundred thirty million, eight hundred ninety thousand, five hundred three".