471489993 has 12 divisors (see below), whose sum is σ = 733429060. Its totient is φ = 290147616.

The previous prime is 471489911. The next prime is 471490003. The reversal of 471489993 is 399984174.

471489993 is a `hidden beast` number, since 4 + 71 + 489 + 9 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50296464 + 421193529 = 7092^2 + 20523^2 .

It is not a de Polignac number, because 471489993 - 2¹⁴ = 471473609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (471489493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2014798 + ... + 2015031.

Almost surely, 2^471489993 is an apocalyptic number.

It is an amenable number.

471489993 is a deficient number, since it is larger than the sum of its proper divisors (261939067).

471489993 is a wasteful number, since it uses less digits than its factorization.

471489993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029848 (or 4029845 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 471489993 is about 21713.8203225503. The cubic root of 471489993 is about 778.3187505528.

The spelling of 471489993 in words is "four hundred seventy-one million, four hundred eighty-nine thousand, nine hundred ninety-three".