630480841 has 2 divisors, whose sum is σ = 630480842. Its totient is φ = 630480840.

The previous prime is 630480839. The next prime is 630480863. The reversal of 630480841 is 148084036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 581774400 + 48706441 = 24120^2 + 6979^2 .

It is a cyclic number.

It is not a de Polignac number, because 630480841 - 2¹ = 630480839 is a prime.

Together with 630480839, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 630480797 and 630480806.

It is not a weakly prime, because it can be changed into another prime (630480041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315240420 + 315240421.

It is an arithmetic number, because the mean of its divisors is an integer number (315240421).

Almost surely, 2^630480841 is an apocalyptic number.

It is an amenable number.

630480841 is a deficient number, since it is larger than the sum of its proper divisors (1).

630480841 is an equidigital number, since it uses as much as digits as its factorization.

630480841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 630480841 is about 25109.3775510266. The cubic root of 630480841 is about 857.4799315315.

The spelling of 630480841 in words is "six hundred thirty million, four hundred eighty thousand, eight hundred forty-one".