478875609 has 12 divisors (see below), whose sum is σ = 696991152. Its totient is φ = 316812600.

The previous prime is 478875583. The next prime is 478875619. The reversal of 478875609 is 906578874.

478875609 is a `hidden beast` number, since 4 + 78 + 8 + 7 + 560 + 9 = 666.

It is not a de Polignac number, because 478875609 - 2⁹ = 478875097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478875619) 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, 201907 + ... + 204264.

It is an arithmetic number, because the mean of its divisors is an integer number (58082596).

Almost surely, 2^478875609 is an apocalyptic number.

It is an amenable number.

478875609 is a deficient number, since it is larger than the sum of its proper divisors (218115543).

478875609 is a wasteful number, since it uses less digits than its factorization.

478875609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406308 (or 406305 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 478875609 is about 21883.2266587905. The cubic root of 478875609 is about 782.3616833033.

The spelling of 478875609 in words is "four hundred seventy-eight million, eight hundred seventy-five thousand, six hundred nine".