630617271 has 16 divisors (see below), whose sum is σ = 848509440. Its totient is φ = 416586240.

The previous prime is 630617257. The next prime is 630617279. The reversal of 630617271 is 172716036.

It is a de Polignac number, because none of the positive numbers 2^k-630617271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630617279) 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 15 ways as a sum of consecutive naturals, for example, 154900 + ... + 158918.

It is an arithmetic number, because the mean of its divisors is an integer number (53031840).

Almost surely, 2^630617271 is an apocalyptic number.

630617271 is a deficient number, since it is larger than the sum of its proper divisors (217892169).

630617271 is a wasteful number, since it uses less digits than its factorization.

630617271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 630617271 is about 25112.0941181734. The cubic root of 630617271 is about 857.5417772119.

The spelling of 630617271 in words is "six hundred thirty million, six hundred seventeen thousand, two hundred seventy-one".