630511463 has 4 divisors (see below), whose sum is σ = 630612888. Its totient is φ = 630410040.

The previous prime is 630511457. The next prime is 630511477. The reversal of 630511463 is 364115036.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630511463 - 2¹⁴ = 630495079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630511423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40733 + ... + 54038.

It is an arithmetic number, because the mean of its divisors is an integer number (157653222).

Almost surely, 2^630511463 is an apocalyptic number.

630511463 is a deficient number, since it is larger than the sum of its proper divisors (101425).

630511463 is an equidigital number, since it uses as much as digits as its factorization.

630511463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101424.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 630511463 is about 25109.9873158072. The cubic root of 630511463 is about 857.4938137008.

Adding to 630511463 its reverse (364115036), we get a palindrome (994626499).

The spelling of 630511463 in words is "six hundred thirty million, five hundred eleven thousand, four hundred sixty-three".