630712605 has 16 divisors (see below), whose sum is σ = 1032609600. Its totient is φ = 328556928.

The previous prime is 630712603. The next prime is 630712609. The reversal of 630712605 is 506217036.

It is not a de Polignac number, because 630712605 - 2¹ = 630712603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630712603) 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, 488280 + ... + 489569.

It is an arithmetic number, because the mean of its divisors is an integer number (64538100).

Almost surely, 2^630712605 is an apocalyptic number.

It is an amenable number.

630712605 is a deficient number, since it is larger than the sum of its proper divisors (401896995).

630712605 is a wasteful number, since it uses less digits than its factorization.

630712605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977900.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 630712605 is about 25113.9922154961. The cubic root of 630712605 is about 857.5849881906.

The spelling of 630712605 in words is "six hundred thirty million, seven hundred twelve thousand, six hundred five".