478320775 has 6 divisors (see below), whose sum is σ = 593117792. Its totient is φ = 382656600.

The previous prime is 478320769. The next prime is 478320779. The reversal of 478320775 is 577023874.

It is not a de Polignac number, because 478320775 - 2³ = 478320767 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 (478320779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9566391 + ... + 9566440.

Almost surely, 2^478320775 is an apocalyptic number.

478320775 is a deficient number, since it is larger than the sum of its proper divisors (114797017).

478320775 is a wasteful number, since it uses less digits than its factorization.

478320775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19132841 (or 19132836 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 478320775 is about 21870.5458322375. The cubic root of 478320775 is about 782.0594137044.

The spelling of 478320775 in words is "four hundred seventy-eight million, three hundred twenty thousand, seven hundred seventy-five".