630260977 has 2 divisors, whose sum is σ = 630260978. Its totient is φ = 630260976.

The previous prime is 630260963. The next prime is 630261041. The reversal of 630260977 is 779062036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573650401 + 56610576 = 23951^2 + 7524^2 .

It is a cyclic number.

It is not a de Polignac number, because 630260977 - 2¹⁹ = 629736689 is a prime.

It is not a weakly prime, because it can be changed into another prime (630260947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315130488 + 315130489.

It is an arithmetic number, because the mean of its divisors is an integer number (315130489).

Almost surely, 2^630260977 is an apocalyptic number.

It is an amenable number.

630260977 is a deficient number, since it is larger than the sum of its proper divisors (1).

630260977 is an equidigital number, since it uses as much as digits as its factorization.

630260977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 630260977 is about 25104.9990440151. Note that the first 3 decimals coincide. The cubic root of 630260977 is about 857.3802452420.

The spelling of 630260977 in words is "six hundred thirty million, two hundred sixty thousand, nine hundred seventy-seven".