471663009 has 6 divisors (see below), whose sum is σ = 681291026. Its totient is φ = 314442000.

The previous prime is 471663007. The next prime is 471663019. The reversal of 471663009 is 900366174.

471663009 is a `hidden beast` number, since 4 + 7 + 16 + 630 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 463454784 + 8208225 = 21528^2 + 2865^2 .

It is not a de Polignac number, because 471663009 - 2¹ = 471663007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471663007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26203492 + ... + 26203509.

Almost surely, 2^471663009 is an apocalyptic number.

It is an amenable number.

471663009 is a deficient number, since it is larger than the sum of its proper divisors (209628017).

471663009 is a wasteful number, since it uses less digits than its factorization.

471663009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52407007 (or 52407004 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 471663009 is about 21717.8039635687. The cubic root of 471663009 is about 778.4139417768.

The spelling of 471663009 in words is "four hundred seventy-one million, six hundred sixty-three thousand, nine".