471676509 has 24 divisors (see below), whose sum is σ = 725095800. Its totient is φ = 294432768.

The previous prime is 471676489. The next prime is 471676511. The reversal of 471676509 is 905676174.

It is a happy number.

471676509 is a `hidden beast` number, since 4 + 71 + 6 + 76 + 509 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 186404409 + 285272100 = 13653^2 + 16890^2 .

It is not a de Polignac number, because 471676509 - 2⁵ = 471676477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471676549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22317 + ... + 37965.

It is an arithmetic number, because the mean of its divisors is an integer number (30212325).

Almost surely, 2^471676509 is an apocalyptic number.

It is an amenable number.

471676509 is a deficient number, since it is larger than the sum of its proper divisors (253419291).

471676509 is a wasteful number, since it uses less digits than its factorization.

471676509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15869 (or 15866 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 471676509 is about 21718.1147662499. The cubic root of 471676509 is about 778.4213683277.

It can be divided in two parts, 4716 and 76509, that added together give a square (81225 = 285²).

The spelling of 471676509 in words is "four hundred seventy-one million, six hundred seventy-six thousand, five hundred nine".