630008849 has 2 divisors, whose sum is σ = 630008850. Its totient is φ = 630008848.

The previous prime is 630008843. The next prime is 630008851. The reversal of 630008849 is 948800036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366531025 + 263477824 = 19145^2 + 16232^2 .

It is a cyclic number.

It is not a de Polignac number, because 630008849 - 2⁴ = 630008833 is a prime.

It is a super-2 number, since 2×630008849² = 793822299636609602, which contains 22 as substring.

Together with 630008851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (630008843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315004424 + 315004425.

It is an arithmetic number, because the mean of its divisors is an integer number (315004425).

Almost surely, 2^630008849 is an apocalyptic number.

It is an amenable number.

630008849 is a deficient number, since it is larger than the sum of its proper divisors (1).

630008849 is an equidigital number, since it uses as much as digits as its factorization.

630008849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 630008849 is about 25099.9770717027. The cubic root of 630008849 is about 857.2659019218.

The spelling of 630008849 in words is "six hundred thirty million, eight thousand, eight hundred forty-nine".