630654505 has 8 divisors (see below), whose sum is σ = 814999752. Its totient is φ = 465714048.

The previous prime is 630654467. The next prime is 630654511. The reversal of 630654505 is 505456036.

It can be written as a sum of positive squares in 4 ways, for example, as 41718681 + 588935824 = 6459^2 + 24268^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 630654505 - 2¹⁵ = 630621737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4851124 + ... + 4851253.

It is an arithmetic number, because the mean of its divisors is an integer number (101874969).

Almost surely, 2^630654505 is an apocalyptic number.

630654505 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630654505 is a deficient number, since it is larger than the sum of its proper divisors (184345247).

630654505 is a wasteful number, since it uses less digits than its factorization.

630654505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702395.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 630654505 is about 25112.8354631650. The cubic root of 630654505 is about 857.5586543700.

The spelling of 630654505 in words is "six hundred thirty million, six hundred fifty-four thousand, five hundred five".