478665559 has 8 divisors (see below), whose sum is σ = 491879600. Its totient is φ = 465466176.

The previous prime is 478665557. The next prime is 478665571. The reversal of 478665559 is 955566874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478665559 - 2¹ = 478665557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478665557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110692 + ... + 114934.

It is an arithmetic number, because the mean of its divisors is an integer number (61484950).

Almost surely, 2^478665559 is an apocalyptic number.

478665559 is a deficient number, since it is larger than the sum of its proper divisors (13214041).

478665559 is a wasteful number, since it uses less digits than its factorization.

478665559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7329.

The product of its digits is 9072000, while the sum is 55.

The square root of 478665559 is about 21878.4267944475. The cubic root of 478665559 is about 782.2472770415.

The spelling of 478665559 in words is "four hundred seventy-eight million, six hundred sixty-five thousand, five hundred fifty-nine".