630908271 has 30 divisors (see below), whose sum is σ = 1096347120. Its totient is φ = 360516744.

The previous prime is 630908263. The next prime is 630908297. The reversal of 630908271 is 172809036.

It is not a de Polignac number, because 630908271 - 2³ = 630908263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630908231) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 75511 + ... + 83448.

It is an arithmetic number, because the mean of its divisors is an integer number (36544904).

Almost surely, 2^630908271 is an apocalyptic number.

630908271 is a deficient number, since it is larger than the sum of its proper divisors (465438849).

630908271 is a wasteful number, since it uses less digits than its factorization.

630908271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158985 (or 158969 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 630908271 is about 25117.8874708842. The cubic root of 630908271 is about 857.6736618981.

The spelling of 630908271 in words is "six hundred thirty million, nine hundred eight thousand, two hundred seventy-one".