630663577 has 2 divisors, whose sum is σ = 630663578. Its totient is φ = 630663576.

The previous prime is 630663547. The next prime is 630663581. The reversal of 630663577 is 775366036.

630663577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554555401 + 76108176 = 23549^2 + 8724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630663577 is a prime.

It is a super-4 number, since 4×630663577⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (630663547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315331788 + 315331789.

It is an arithmetic number, because the mean of its divisors is an integer number (315331789).

Almost surely, 2^630663577 is an apocalyptic number.

It is an amenable number.

630663577 is a deficient number, since it is larger than the sum of its proper divisors (1).

630663577 is an equidigital number, since it uses as much as digits as its factorization.

630663577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 43.

The square root of 630663577 is about 25113.0160872803. The cubic root of 630663577 is about 857.5627663599.

The spelling of 630663577 in words is "six hundred thirty million, six hundred sixty-three thousand, five hundred seventy-seven".