630020177 has 2 divisors, whose sum is σ = 630020178. Its totient is φ = 630020176.

The previous prime is 630020093. The next prime is 630020179. The reversal of 630020177 is 771020036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367450561 + 262569616 = 19169^2 + 16204^2 .

It is a cyclic number.

It is not a de Polignac number, because 630020177 - 2¹⁰ = 630019153 is a prime.

It is a super-2 number, since 2×630020177² = 793850846854222658, which contains 22 as substring.

Together with 630020179, 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 (630020179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315010088 + 315010089.

It is an arithmetic number, because the mean of its divisors is an integer number (315010089).

Almost surely, 2^630020177 is an apocalyptic number.

It is an amenable number.

630020177 is a deficient number, since it is larger than the sum of its proper divisors (1).

630020177 is an equidigital number, since it uses as much as digits as its factorization.

630020177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 630020177 is about 25100.2027282650. The cubic root of 630020177 is about 857.2710399713.

The spelling of 630020177 in words is "six hundred thirty million, twenty thousand, one hundred seventy-seven".